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All questions of Diversity in the Living World for Class 6 Exam
Which of the following animals is an amphibian?- a)Lion
- b)Dolphin
- c)Frog
- d)Eagle
Correct answer is option 'C'. Can you explain this answer?
a)
Lion
b)
Dolphin
c)
Frog
d)
Eagle
|
Praveen Kumar answered |
Frogs are amphibians, meaning they can live both on land and in water.
Which of the following plants is classified as an herb?- a) Oak tree
- b) Vine
- c) Cactus
- d) Tomato plant
Correct answer is option 'D'. Can you explain this answer?
Which of the following plants is classified as an herb?
a)
Oak tree
b)
Vine
c)
Cactus
d)
Tomato plant
|
Kds Coaching answered |
The tomato plant is classified as an herb due to its soft, green stems and relatively small size compared to shrubs and trees. Herbs are typically non-woody plants and can be used in cooking, medicine, and gardening. Fascinatingly, many herbs are known for their aromatic properties and are essential in culinary practices worldwide, enhancing flavors and providing health benefits.
What type of root system is typically found in plants with parallel venation?- a)Taproot system
- b)Fibrous root system
- c)Adventitious root system
- d)No root system
Correct answer is option 'B'. Can you explain this answer?
What type of root system is typically found in plants with parallel venation?
a)
Taproot system
b)
Fibrous root system
c)
Adventitious root system
d)
No root system
|
|
Kds Coaching answered |
Plants with parallel venation, like grass and wheat, usually have a fibrous root system. This root system consists of many thin roots of similar size spreading out from the base of the stem. In contrast, plants with reticulate venation, like hibiscus, have a taproot system with one main root and smaller side roots branching off. This relationship between venation and root type is a common characteristic used to group plants.
Which of the following is an example of an aquatic habitat?- a)Desert
- b)Pond
- c)Grassland
- d)Mountain
Correct answer is option 'B'. Can you explain this answer?
Which of the following is an example of an aquatic habitat?
a)
Desert
b)
Pond
c)
Grassland
d)
Mountain
|
|
Kds Coaching answered |
A pond is an aquatic habitat where plants and animals live in water. Other options represent terrestrial habitats.
Which of the following plants exhibits a fibrous root system?- a) Carrot
- b) Radish
- c) Grass
- d) Beetroot
Correct answer is option 'C'. Can you explain this answer?
Which of the following plants exhibits a fibrous root system?
a)
Carrot
b)
Radish
c)
Grass
d)
Beetroot
|
Satish Thube answered |
C grass is the correct option for guessing here is a tip p-f-m ,r-t-d r means reticulate venation p-parallel venation f-fibrous root t-taproot d-dicotyledons m-monocotyledons
Which part of the plant is responsible for photosynthesis?- a)Root
- b)Stem
- c)Leaf
- d)Flower
Correct answer is option 'C'. Can you explain this answer?
Which part of the plant is responsible for photosynthesis?
a)
Root
b)
Stem
c)
Leaf
d)
Flower
|
EduRev Class 6 answered |
Leaves contain chlorophyll and are the main site for photosynthesis, the process by which plants make their food.
What is the importance of grouping plants and animals?- a)It simplifies the study and understanding of their diversity.
- b)It helps in decreasing biodiversity.
- c)It ensures that only useful species are preserved.
- d)It focuses on individual species rather than ecosystems.
Correct answer is option 'A'. Can you explain this answer?
a)
It simplifies the study and understanding of their diversity.
b)
It helps in decreasing biodiversity.
c)
It ensures that only useful species are preserved.
d)
It focuses on individual species rather than ecosystems.
|
Coachify answered |
Grouping plants and animals simplifies the study and understanding of their vast diversity, making it easier to identify, compare, and classify them.
What type of venation do the leaves of a hibiscus plant have?- a)Parallel venation
- b)Reticulate venation
- c)Spiral venation
- d)No venation
Correct answer is option 'B'. Can you explain this answer?
a)
Parallel venation
b)
Reticulate venation
c)
Spiral venation
d)
No venation
|
Keystone Instructors answered |
Hibiscus leaves have reticulate venation, where veins form a network.
In flowering plants, which part is often brightly colored to attract pollinators?- a) Sepal
- b) Petal
- c) Stamen
- d) Pistil
Correct answer is option 'B'. Can you explain this answer?
In flowering plants, which part is often brightly colored to attract pollinators?
a)
Sepal
b)
Petal
c)
Stamen
d)
Pistil
|
|
EduRev Class 6 answered |
Petals are typically colorful and serve to attract pollinators such as bees and butterflies. The vibrant colors and patterns of petals are important for ensuring successful pollination, which is crucial for the reproductive success of flowering plants.
Which of the following is a characteristic of trees?- a)They have soft, green stems.
- b)They have medium height and woody stems.
- c)They have a single, woody stem called a trunk.
- d)They are typically used for seasoning food.
Correct answer is option 'C'. Can you explain this answer?
a)
They have soft, green stems.
b)
They have medium height and woody stems.
c)
They have a single, woody stem called a trunk.
d)
They are typically used for seasoning food.
|
Dr Manju Sen answered |
Trees are the tallest plants with a single, woody stem called a trunk. Examples include mango and oak.
Why is observing different plants and animals important for biodiversity?- a)Only useful in academics
- b)Helps understand life variety in a region
- c)Not related to environment
- d)Identifies the most common species
Correct answer is option 'B'. Can you explain this answer?
Why is observing different plants and animals important for biodiversity?
a)
Only useful in academics
b)
Helps understand life variety in a region
c)
Not related to environment
d)
Identifies the most common species
|
Get Idea answered |
Observing plants and animals helps us understand biodiversity—the variety of life in an area. This supports ecosystem health and balance.
What is the main difference between where birds and fish live?- a)Birds live in trees, fish live in water.
- b)Birds live in water, fish live on land.
- c)Birds build homes in soil, fish do not.
- d)Both can live on land.
Correct answer is option 'A'. Can you explain this answer?
What is the main difference between where birds and fish live?
a)
Birds live in trees, fish live in water.
b)
Birds live in water, fish live on land.
c)
Birds build homes in soil, fish do not.
d)
Both can live on land.
|
|
Praveen Kumar answered |
Birds usually live in trees or on land, while fish live in water. Birds are adapted for flying and perching; fish have gills to breathe underwater.
Which type of plant is characterized by having many brown woody stems that branch close to the ground?- a) Herb
- b) Shrub
- c) Tree
- d) Climber
Correct answer is option 'B'. Can you explain this answer?
Which type of plant is characterized by having many brown woody stems that branch close to the ground?
a)
Herb
b)
Shrub
c)
Tree
d)
Climber
|
|
Kds Coaching answered |
Shrubs are defined by their woody stems that are typically shorter than trees and branch low to the ground. They are often found in gardens and landscapes, providing structure and habitat for various wildlife. An interesting fact about shrubs is that they can vary greatly in size and shape, and some, like the rose bush, produce beautiful flowers that attract pollinators such as bees and butterflies.
Which type of habitat is characterized by dense areas with a variety of trees and wildlife?- a)Desert
- b)Grassland
- c)Forest
- d)Marine
Correct answer is option 'C'. Can you explain this answer?
a)
Desert
b)
Grassland
c)
Forest
d)
Marine
|
Vp Classes answered |
Forests are dense areas with a variety of trees and wildlife, such as tropical rainforests.
Which plant system is characterized by a single, thick root?- a)Grass
- b)Carrot
- c)Wheat
- d)Maize
Correct answer is option 'B'. Can you explain this answer?
Which plant system is characterized by a single, thick root?
a)
Grass
b)
Carrot
c)
Wheat
d)
Maize
|
Mahesh Chavan answered |
Understanding Plant Systems
Plants have various root systems that help them adapt to their environments. One of these systems is characterized by a single, thick root, commonly known as a taproot system.
What is a Taproot System?
- A taproot system consists of a main root that grows deeper into the soil, providing stability and anchorage to the plant.
- The thick main root is often accompanied by smaller lateral roots that spread out horizontally.
Characteristics of Carrot (Option B)
- The carrot (Daucus carota) is a classic example of a plant with a taproot system.
- The thick, orange root that we eat is actually the storage organ of the plant, designed to store nutrients and energy.
- Carrots thrive in well-drained soils, allowing their taproots to grow deep and access water and nutrients.
Comparison with Other Options
- Grass (Option A): Grass typically has a fibrous root system, which consists of many thin roots that spread out close to the surface.
- Wheat (Option C): Wheat also possesses a fibrous root system that helps it anchor and absorb moisture efficiently.
- Maize (Option D): Similar to wheat, maize (corn) has a fibrous root system, with many roots that grow shallow and wide.
Conclusion
In summary, the carrot is the correct answer because it features a single, thick taproot, distinguishing it from grasses, wheat, and maize, which all have fibrous root systems. Understanding these differences helps us appreciate the diversity in plant adaptations and growth strategies.
Plants have various root systems that help them adapt to their environments. One of these systems is characterized by a single, thick root, commonly known as a taproot system.
What is a Taproot System?
- A taproot system consists of a main root that grows deeper into the soil, providing stability and anchorage to the plant.
- The thick main root is often accompanied by smaller lateral roots that spread out horizontally.
Characteristics of Carrot (Option B)
- The carrot (Daucus carota) is a classic example of a plant with a taproot system.
- The thick, orange root that we eat is actually the storage organ of the plant, designed to store nutrients and energy.
- Carrots thrive in well-drained soils, allowing their taproots to grow deep and access water and nutrients.
Comparison with Other Options
- Grass (Option A): Grass typically has a fibrous root system, which consists of many thin roots that spread out close to the surface.
- Wheat (Option C): Wheat also possesses a fibrous root system that helps it anchor and absorb moisture efficiently.
- Maize (Option D): Similar to wheat, maize (corn) has a fibrous root system, with many roots that grow shallow and wide.
Conclusion
In summary, the carrot is the correct answer because it features a single, thick taproot, distinguishing it from grasses, wheat, and maize, which all have fibrous root systems. Understanding these differences helps us appreciate the diversity in plant adaptations and growth strategies.
Identify the part of the plant that is primarily responsible for reproduction.- a) Leaf
- b) Stem
- c) Root
- d) Flower
Correct answer is option 'D'. Can you explain this answer?
Identify the part of the plant that is primarily responsible for reproduction.
a)
Leaf
b)
Stem
c)
Root
d)
Flower
|
|
Saptarshi Das answered |
Understanding Plant Reproduction
The flower is the primary reproductive structure in flowering plants (angiosperms). Its complex structure facilitates various processes crucial for reproduction.
Key Functions of the Flower
- Attraction of Pollinators:
Flowers are often brightly colored and fragrant, attracting insects and animals, which help in the process of pollination.
- Pollination:
This is the transfer of pollen from the male part (anther) to the female part (stigma) of the flower. It can occur via wind, water, or animals.
- Fertilization:
After pollination, pollen travels down the style to the ovary, where fertilization occurs. This leads to the formation of seeds.
- Seed Production:
Once fertilized, the ovule develops into a seed, and the ovary matures into a fruit, which helps in seed dispersal.
Other Plant Parts and Their Roles
- Leaves:
Primarily responsible for photosynthesis, converting sunlight into energy for the plant.
- Stems:
Support the plant, transport nutrients and water between roots and leaves, but do not play a direct role in reproduction.
- Roots:
Anchor the plant and absorb water and nutrients from the soil, but they are not involved in the reproductive process.
Conclusion
In summary, the flower is essential for the reproductive cycle of flowering plants, making it the correct answer. Understanding its role helps us appreciate the complexity and beauty of plant life.
The flower is the primary reproductive structure in flowering plants (angiosperms). Its complex structure facilitates various processes crucial for reproduction.
Key Functions of the Flower
- Attraction of Pollinators:
Flowers are often brightly colored and fragrant, attracting insects and animals, which help in the process of pollination.
- Pollination:
This is the transfer of pollen from the male part (anther) to the female part (stigma) of the flower. It can occur via wind, water, or animals.
- Fertilization:
After pollination, pollen travels down the style to the ovary, where fertilization occurs. This leads to the formation of seeds.
- Seed Production:
Once fertilized, the ovule develops into a seed, and the ovary matures into a fruit, which helps in seed dispersal.
Other Plant Parts and Their Roles
- Leaves:
Primarily responsible for photosynthesis, converting sunlight into energy for the plant.
- Stems:
Support the plant, transport nutrients and water between roots and leaves, but do not play a direct role in reproduction.
- Roots:
Anchor the plant and absorb water and nutrients from the soil, but they are not involved in the reproductive process.
Conclusion
In summary, the flower is essential for the reproductive cycle of flowering plants, making it the correct answer. Understanding its role helps us appreciate the complexity and beauty of plant life.
Which part of the plant contains the seeds after fertilization?- a) Leaf
- b) Stem
- c) Flower
- d) Root
Correct answer is option 'C'. Can you explain this answer?
Which part of the plant contains the seeds after fertilization?
a)
Leaf
b)
Stem
c)
Flower
d)
Root
|
|
Get Idea answered |
Seeds develop within the ovary of the flower after the process of fertilization. This reproductive part is crucial for the propagation of the plant, as seeds will eventually grow into new plants under favorable conditions.
What function do veins serve in leaves?- a) Absorb sunlight
- b) Transport water and nutrients
- c) Perform photosynthesis
- d) Store food
Correct answer is option 'B'. Can you explain this answer?
What function do veins serve in leaves?
a)
Absorb sunlight
b)
Transport water and nutrients
c)
Perform photosynthesis
d)
Store food
|
Rohini Seth answered |
Veins in leaves are essential for transporting water and nutrients to the leaf tissues and carrying the synthesized food back to other parts of the plant. This vascular network is crucial for maintaining the plant's health and facilitating its metabolic processes.
Which of the following characteristics is NOT associated with trees?- a)Tall height
- b)Thin branches
- c)Brown, hard stems
- d)Thick, woody stems
Correct answer is option 'D'. Can you explain this answer?
Which of the following characteristics is NOT associated with trees?
a)
Tall height
b)
Thin branches
c)
Brown, hard stems
d)
Thick, woody stems
|
|
Kds Coaching answered |
Trees are typically characterized by their tall height, brown and hard stems, and thick, woody stems. Thin branches are more commonly associated with shrubs and herbs. This distinction is important in understanding plant types as it helps in identifying their growth patterns and ecological roles. Interestingly, trees play a crucial role in the environment by providing oxygen, improving air quality, and supporting wildlife habitats.
What type of root system is characterized by a single main root with smaller side roots?- a)Taproot system
- b)Surface root system
- c)Adventitious root system
- d)Fibrous root system
Correct answer is option 'A'. Can you explain this answer?
What type of root system is characterized by a single main root with smaller side roots?
a)
Taproot system
b)
Surface root system
c)
Adventitious root system
d)
Fibrous root system
|
|
Rounak Patel answered |
Understanding Root Systems
Root systems are vital for plants, as they anchor them in the soil and help in nutrient and water absorption. One of the most common types of root systems is the taproot system.
What is a Taproot System?
A taproot system is characterized by:
- A single main root that grows vertically downward.
- Smaller side roots (also known as lateral roots) that emerge from the main root.
Examples of Taproot Systems
- Carrots: The thick, fleshy root serves as the main storage organ.
- Dandelions: They develop a strong taproot that helps them survive in various conditions.
Benefits of a Taproot System
- Deep Anchoring: The main root anchors the plant firmly in the ground, providing stability.
- Access to Deep Water Sources: Taproots can reach deeper soil layers, allowing plants to access water that other plants cannot.
- Nutrient Storage: The main root can store nutrients which can be beneficial for the plant's growth and survival during adverse conditions.
Comparison with Other Root Systems
- Fibrous Root System: Composed of many thin roots that spread out horizontally, making them more suitable for shallow soils.
- Adventitious Root System: Roots that grow from unusual places, such as stems or leaves, rather than the primary root.
- Surface Root System: Roots that grow near the soil surface, which can be advantageous in areas with high rainfall.
In summary, the taproot system is essential for many plants, providing stability, nutrient storage, and efficient water access.
Root systems are vital for plants, as they anchor them in the soil and help in nutrient and water absorption. One of the most common types of root systems is the taproot system.
What is a Taproot System?
A taproot system is characterized by:
- A single main root that grows vertically downward.
- Smaller side roots (also known as lateral roots) that emerge from the main root.
Examples of Taproot Systems
- Carrots: The thick, fleshy root serves as the main storage organ.
- Dandelions: They develop a strong taproot that helps them survive in various conditions.
Benefits of a Taproot System
- Deep Anchoring: The main root anchors the plant firmly in the ground, providing stability.
- Access to Deep Water Sources: Taproots can reach deeper soil layers, allowing plants to access water that other plants cannot.
- Nutrient Storage: The main root can store nutrients which can be beneficial for the plant's growth and survival during adverse conditions.
Comparison with Other Root Systems
- Fibrous Root System: Composed of many thin roots that spread out horizontally, making them more suitable for shallow soils.
- Adventitious Root System: Roots that grow from unusual places, such as stems or leaves, rather than the primary root.
- Surface Root System: Roots that grow near the soil surface, which can be advantageous in areas with high rainfall.
In summary, the taproot system is essential for many plants, providing stability, nutrient storage, and efficient water access.
What is the role of sepals in a flower?- a) Protect the bud
- b) Attract pollinators
- c) Produce pollen
- d) Support the ovary
Correct answer is option 'A'. Can you explain this answer?
What is the role of sepals in a flower?
a)
Protect the bud
b)
Attract pollinators
c)
Produce pollen
d)
Support the ovary
|
|
Kds Coaching answered |
Sepals are typically green and serve to protect the flower bud before it blooms. They shield the delicate petals and reproductive structures from environmental damage and dehydration, ensuring the flower can develop properly.
Which part of the plant is primarily responsible for anchoring it to the ground?- a)Leaf
- b)Stem
- c)Root
- d)Flower
Correct answer is option 'C'. Can you explain this answer?
Which part of the plant is primarily responsible for anchoring it to the ground?
a)
Leaf
b)
Stem
c)
Root
d)
Flower
|
|
Get Idea answered |
The root of the plant plays a crucial role in anchoring it to the soil, providing stability and support.
Additionally, roots are vital for absorbing water and essential nutrients from the soil,
which are necessary for the plant's growth and development.
Additionally, roots are vital for absorbing water and essential nutrients from the soil,
which are necessary for the plant's growth and development.
What is the function of xylem in plants?- a) Transport food
- b) Transport water and minerals
- c) Photosynthesis
- d) Reproduction
Correct answer is option 'B'. Can you explain this answer?
What is the function of xylem in plants?
a)
Transport food
b)
Transport water and minerals
c)
Photosynthesis
d)
Reproduction
|
Sagnik Saha answered |
Function of Xylem in Plants
Xylem is a crucial tissue in vascular plants, primarily responsible for the transport of water and minerals. Here’s a detailed explanation of its function:
Water Transport
- Xylem transports water from the roots to various parts of the plant, including stems and leaves.
- This process occurs through a mechanism called transpiration, where water evaporates from the leaf surface, creating a negative pressure that pulls water upward.
Mineral Transport
- Along with water, xylem also carries essential minerals and nutrients absorbed from the soil.
- These minerals include nitrogen, phosphorus, potassium, and others that are vital for plant growth and development.
Structural Support
- Besides transport, xylem provides structural support to the plant.
- Its cell walls are thickened and lignified, helping to maintain the plant's upright position and withstand various environmental stresses.
Importance in Plant Growth
- The efficient transport of water and minerals is critical for photosynthesis, the process by which plants make their food.
- Adequate water supply helps in nutrient absorption and promotes overall plant health and growth.
In summary, the primary function of xylem is to transport water and minerals, making option 'B' the correct answer. Understanding the role of xylem is essential for appreciating how plants thrive and maintain their physiological processes.
Xylem is a crucial tissue in vascular plants, primarily responsible for the transport of water and minerals. Here’s a detailed explanation of its function:
Water Transport
- Xylem transports water from the roots to various parts of the plant, including stems and leaves.
- This process occurs through a mechanism called transpiration, where water evaporates from the leaf surface, creating a negative pressure that pulls water upward.
Mineral Transport
- Along with water, xylem also carries essential minerals and nutrients absorbed from the soil.
- These minerals include nitrogen, phosphorus, potassium, and others that are vital for plant growth and development.
Structural Support
- Besides transport, xylem provides structural support to the plant.
- Its cell walls are thickened and lignified, helping to maintain the plant's upright position and withstand various environmental stresses.
Importance in Plant Growth
- The efficient transport of water and minerals is critical for photosynthesis, the process by which plants make their food.
- Adequate water supply helps in nutrient absorption and promotes overall plant health and growth.
In summary, the primary function of xylem is to transport water and minerals, making option 'B' the correct answer. Understanding the role of xylem is essential for appreciating how plants thrive and maintain their physiological processes.
What is the primary role of phloem in plants?- a) Transport food
- b) Transport water
- c) Provide support
- d) Absorb nutrients
Correct answer is option 'A'. Can you explain this answer?
What is the primary role of phloem in plants?
a)
Transport food
b)
Transport water
c)
Provide support
d)
Absorb nutrients
|
Indu Gupta answered |
The phloem is responsible for transporting the products of photosynthesis, primarily sugars, from the leaves to other parts of the plant. This transport is crucial for distributing energy to areas that require it for growth, storage, or reproduction.
What type of plants are herbs?- a)Tall plants with single woody stems.
- b)Small plants with soft, green stems.
- c)Medium-sized plants with woody stems.
- d)Plants with thick stems to store water.
Correct answer is option 'B'. Can you explain this answer?
a)
Tall plants with single woody stems.
b)
Small plants with soft, green stems.
c)
Medium-sized plants with woody stems.
d)
Plants with thick stems to store water.
|
|
EduRev Class 6 answered |
Herbs are small plants with soft, green stems. Examples include mint and basil.
What is the main purpose of adaptations in plants and animals?- a)To look beautiful and attract attention.
- b)To survive and thrive in their specific environment.
- c)To compete with other organisms for resources.
- d)To increase their population size quickly.
Correct answer is option 'B'. Can you explain this answer?
What is the main purpose of adaptations in plants and animals?
a)
To look beautiful and attract attention.
b)
To survive and thrive in their specific environment.
c)
To compete with other organisms for resources.
d)
To increase their population size quickly.
|
|
EduRev Class 6 answered |
Adaptations are special features or behaviors that help plants and animals survive in their unique habitats. For example, camels store fat in their humps to live in deserts, and fish have fins and gills to swim and breathe underwater. These adaptations allow them to find food, stay safe, and live comfortably in their surroundings.
Which type of seed has two cotyledons and is classified as a dicotyledon?- a) Wheat
- b) Rice
- c) Chickpea
- d) Maize
Correct answer is option 'C'. Can you explain this answer?
Which type of seed has two cotyledons and is classified as a dicotyledon?
a)
Wheat
b)
Rice
c)
Chickpea
d)
Maize
|
|
Kds Coaching answered |
Chickpea is classified as a dicotyledon because it contains two cotyledons, which are the two halves of the seed that store nutrients for the developing plant. In contrast, maize is a monocotyledon, characterized by having only one cotyledon. This distinction plays a significant role in plant classification and affects other traits, such as leaf structure and root systems. For example, dicots generally exhibit reticulate venation in their leaves, while monocots show parallel venation. Understanding these differences is essential for studying plant biology and agriculture.
Which of the following is NOT a characteristic of living organisms?- a)Growth
- b)Movement
- c)Reproduction
- d)Shining like metals
Correct answer is option 'D'. Can you explain this answer?
Which of the following is NOT a characteristic of living organisms?
a)
Growth
b)
Movement
c)
Reproduction
d)
Shining like metals
|
|
Kds Coaching answered |
Living organisms grow, move, and reproduce, but they do not shine like metals. Shining is a property of non-living things like metals.ur to trap heat and keep their bodies warm in extreme temperatures.
Which part of the flower develops into fruit?- a) Petal
- b) Sepal
- c) Ovary
- d) Stamen
Correct answer is option 'C'. Can you explain this answer?
Which part of the flower develops into fruit?
a)
Petal
b)
Sepal
c)
Ovary
d)
Stamen
|
|
Kds Coaching answered |
The ovary of the flower is the structure that develops into fruit after fertilization occurs. The fruit serves to protect the developing seeds and aid in their dispersal, ensuring the continuation of the plant species.
Which type of plant typically has leaves with parallel veins?- a) Monocots
- b) Dicots
- c) Gymnosperms
- d) Bryophytes
Correct answer is option 'A'. Can you explain this answer?
Which type of plant typically has leaves with parallel veins?
a)
Monocots
b)
Dicots
c)
Gymnosperms
d)
Bryophytes
|
Geetika Patel answered |
Understanding Plant Types
Plants are categorized into different groups based on their characteristics. One of the primary classifications is between monocots and dicots.
Monocots: Characteristics
- Parallel Veins: Monocots, or monocotyledons, are characterized by leaves that have parallel veins. This means that the veins run parallel to each other along the length of the leaf.
- Examples: Common examples of monocots include grasses, lilies, and orchids.
- Other Features: Monocots typically have flower parts in multiples of three, a single cotyledon (seed leaf), and fibrous root systems.
Dicots: Characteristics
- Net-like Veins: In contrast, dicots, or dicotyledons, have leaves with a branching, net-like vein pattern.
- Examples: Examples of dicots include roses, sunflowers, and oak trees.
- Other Features: Dicots usually have flower parts in multiples of four or five, two cotyledons, and taproot systems.
Conclusion
The distinct leaf vein patterns are a key identifier between monocots and dicots. Monocots, with their parallel veins, are a unique and important group of flowering plants. Understanding these differences helps in the study of botany and plant biology.
Plants are categorized into different groups based on their characteristics. One of the primary classifications is between monocots and dicots.
Monocots: Characteristics
- Parallel Veins: Monocots, or monocotyledons, are characterized by leaves that have parallel veins. This means that the veins run parallel to each other along the length of the leaf.
- Examples: Common examples of monocots include grasses, lilies, and orchids.
- Other Features: Monocots typically have flower parts in multiples of three, a single cotyledon (seed leaf), and fibrous root systems.
Dicots: Characteristics
- Net-like Veins: In contrast, dicots, or dicotyledons, have leaves with a branching, net-like vein pattern.
- Examples: Examples of dicots include roses, sunflowers, and oak trees.
- Other Features: Dicots usually have flower parts in multiples of four or five, two cotyledons, and taproot systems.
Conclusion
The distinct leaf vein patterns are a key identifier between monocots and dicots. Monocots, with their parallel veins, are a unique and important group of flowering plants. Understanding these differences helps in the study of botany and plant biology.
What term describes the small openings on the surface of leaves that facilitate gas exchange?- a) Stomata
- b) Chloroplasts
- c) Veins
- d) Petioles
Correct answer is option 'A'. Can you explain this answer?
What term describes the small openings on the surface of leaves that facilitate gas exchange?
a)
Stomata
b)
Chloroplasts
c)
Veins
d)
Petioles
|
Manoj Iyer answered |
Understanding Stomata
Stomata are tiny openings located on the surface of leaves that play a crucial role in the process of gas exchange in plants.
Key Functions of Stomata:
- Gas Exchange: Stomata allow carbon dioxide (CO2) to enter the leaf for photosynthesis, which is essential for the plant's growth and energy production. At the same time, oxygen (O2), a byproduct of photosynthesis, exits the leaf through these openings.
- Transpiration: Stomata also facilitate transpiration, the process by which water vapor is released from the plant into the atmosphere. This helps in cooling the plant and maintaining its water balance.
- Regulation: The opening and closing of stomata are regulated by guard cells. These specialized cells surround each stoma and control its size, responding to environmental conditions such as light, humidity, and CO2 concentration.
Other Options Explained:
- Chloroplasts: These are organelles within plant cells responsible for photosynthesis but do not facilitate gas exchange.
- Veins: Plant veins transport water and nutrients but are not involved in gas exchange.
- Petioles: The petiole is the stalk that attaches the leaf to the stem, serving a structural role rather than a function in gas exchange.
In conclusion, stomata are essential for the survival of plants, enabling them to take in necessary gases and release byproducts efficiently. Their unique structure and function make them vital components of the leaf's anatomy.
Stomata are tiny openings located on the surface of leaves that play a crucial role in the process of gas exchange in plants.
Key Functions of Stomata:
- Gas Exchange: Stomata allow carbon dioxide (CO2) to enter the leaf for photosynthesis, which is essential for the plant's growth and energy production. At the same time, oxygen (O2), a byproduct of photosynthesis, exits the leaf through these openings.
- Transpiration: Stomata also facilitate transpiration, the process by which water vapor is released from the plant into the atmosphere. This helps in cooling the plant and maintaining its water balance.
- Regulation: The opening and closing of stomata are regulated by guard cells. These specialized cells surround each stoma and control its size, responding to environmental conditions such as light, humidity, and CO2 concentration.
Other Options Explained:
- Chloroplasts: These are organelles within plant cells responsible for photosynthesis but do not facilitate gas exchange.
- Veins: Plant veins transport water and nutrients but are not involved in gas exchange.
- Petioles: The petiole is the stalk that attaches the leaf to the stem, serving a structural role rather than a function in gas exchange.
In conclusion, stomata are essential for the survival of plants, enabling them to take in necessary gases and release byproducts efficiently. Their unique structure and function make them vital components of the leaf's anatomy.
Which of the following best describes biodiversity?- a)The variety of non-living things in an area.
- b)The variety of living organisms in an area.
- c)The number of humans in a region.
- d)The amount of water available in a region.
Correct answer is option 'B'. Can you explain this answer?
a)
The variety of non-living things in an area.
b)
The variety of living organisms in an area.
c)
The number of humans in a region.
d)
The amount of water available in a region.
|
|
Dr Manju Sen answered |
Biodiversity refers to the variety of living organisms found in a particular region, including plants, animals, fungi, and microorganisms.
What is the primary characteristic of climber plants?- a) They grow very tall without any support.
- b) They have thick, woody stems.
- c) They are typically found in water.
- d) They have soft, green stems that require support.
Correct answer is option 'D'. Can you explain this answer?
What is the primary characteristic of climber plants?
a)
They grow very tall without any support.
b)
They have thick, woody stems.
c)
They are typically found in water.
d)
They have soft, green stems that require support.
|
|
Kds Coaching answered |
Climber plants have soft, green stems that are weak and require support to grow upward. This adaptation allows them to reach sunlight and compete effectively for resources. Some common examples of climbers include grapevines and certain types of ivy. Interestingly, climbers can also improve the aesthetics of a garden by covering walls and trellises with lush foliage.
What is the primary function of the stem in a plant?- a)Absorption of water
- b)Support and transport
- c)Photosynthesis
- d)Reproduction
Correct answer is option 'B'. Can you explain this answer?
What is the primary function of the stem in a plant?
a)
Absorption of water
b)
Support and transport
c)
Photosynthesis
d)
Reproduction
|
|
EduRev Class 6 answered |
The stem serves as the main support structure of a plant, elevating leaves and flowers to access sunlight while transporting water, nutrients, and food between the roots and other parts of the plant.This vital function ensures that all parts of the plant receive the necessary resources for survival.
What is one of the main criteria used to group plants according to their characteristics?- a)The height of the branches
- b)The hardness and thickness of their stems
- c)The texture of their leaves
- d)The color of their flowers
Correct answer is option 'B'. Can you explain this answer??
What is one of the main criteria used to group plants according to their characteristics?
a)
The height of the branches
b)
The hardness and thickness of their stems
c)
The texture of their leaves
d)
The color of their flowers
|
Pranjal Gupta answered |
Understanding Plant Classification
Plant classification is a systematic method to group plants based on their characteristics. One of the main criteria used is the hardness and thickness of their stems. This classification can be broken down into significant categories.
Key Reasons for the Importance of Stem Characteristics:
- Stem Structure: The hardness and thickness of stems help determine whether a plant is a herbaceous plant (soft stems) or a woody plant (hard stems). For instance, trees and shrubs typically have hard, thick stems, while grasses and annual flowers have softer stems.
- Support and Growth: The stem's characteristics influence how well a plant can support itself and transport nutrients and water. Woody plants generally have a more robust structure, allowing them to grow taller and withstand environmental stress.
- Environmental Adaptation: Different stem types reflect adaptations to their environments. For example, cacti have thick, fleshy stems to store water, while climbing plants have thin, flexible stems to help them reach sunlight.
Comparative Analysis with Other Criteria:
- Height of Branches: While branch height can indicate growth patterns, it is not a primary classification criterion.
- Texture of Leaves: Leaf texture provides information about a plant's habitat and adaptation but does not define the main grouping.
- Color of Flowers: Flower color is often used in horticulture but is less effective for scientific classification.
In summary, the hardness and thickness of stems play a pivotal role in classifying plants, reflecting their structural and functional adaptations to their environments. This criterion helps botanists and ecologists understand plant behavior and evolution more effectively.
Plant classification is a systematic method to group plants based on their characteristics. One of the main criteria used is the hardness and thickness of their stems. This classification can be broken down into significant categories.
Key Reasons for the Importance of Stem Characteristics:
- Stem Structure: The hardness and thickness of stems help determine whether a plant is a herbaceous plant (soft stems) or a woody plant (hard stems). For instance, trees and shrubs typically have hard, thick stems, while grasses and annual flowers have softer stems.
- Support and Growth: The stem's characteristics influence how well a plant can support itself and transport nutrients and water. Woody plants generally have a more robust structure, allowing them to grow taller and withstand environmental stress.
- Environmental Adaptation: Different stem types reflect adaptations to their environments. For example, cacti have thick, fleshy stems to store water, while climbing plants have thin, flexible stems to help them reach sunlight.
Comparative Analysis with Other Criteria:
- Height of Branches: While branch height can indicate growth patterns, it is not a primary classification criterion.
- Texture of Leaves: Leaf texture provides information about a plant's habitat and adaptation but does not define the main grouping.
- Color of Flowers: Flower color is often used in horticulture but is less effective for scientific classification.
In summary, the hardness and thickness of stems play a pivotal role in classifying plants, reflecting their structural and functional adaptations to their environments. This criterion helps botanists and ecologists understand plant behavior and evolution more effectively.
Which of the following is classified as a modified stem?- a)Carrot
- b)Potato
- c)Spinach
- d)Radish
Correct answer is option 'B'. Can you explain this answer?
Which of the following is classified as a modified stem?
a)
Carrot
b)
Potato
c)
Spinach
d)
Radish
|
Coders Trust answered |
Explanation:
- Carrot – a modified root (taproot storing food).
- Potato – a modified stem (underground stem called a tuber; has nodes, internodes, and “eyes” which are axillary buds).
- Spinach – leafy vegetable, normal leaves (not a modified stem).
- Radish – a modified root (taproot storing food).
What are the two main components of a stamen?- a)Ovary and style
- b)Anther and filament
- c)Petal and sepal
- d)Stigma and ovule
Correct answer is option 'B'. Can you explain this answer??
What are the two main components of a stamen?
a)
Ovary and style
b)
Anther and filament
c)
Petal and sepal
d)
Stigma and ovule
|
|
Ishaan Chawla answered |
Understanding the Stamen
The stamen is a crucial part of a flower's reproductive system. It consists of two main components: the anther and the filament.
Components of Stamen
Why Other Options Are Incorrect
- Option (a) "Ovary and style" refers to parts of the pistil, which is the female reproductive structure of the flower.
- Option (c) "Petal and sepal" are parts of the flower that are primarily involved in attracting pollinators and protecting the reproductive organs but are not part of the stamen.
- Option (d) "Stigma and ovule" are also components of the pistil, with the stigma receiving pollen and the ovule developing into seeds after fertilization.
In conclusion, the correct answer is option 'B' because the anther and filament are the two defining components that make up a stamen, highlighting its role in the male reproductive process of flowering plants.
The stamen is a crucial part of a flower's reproductive system. It consists of two main components: the anther and the filament.
Components of Stamen
- Anther:
- The anther is the part of the stamen that produces pollen grains, which contain the male gametes (sperm cells) necessary for fertilization.
- It is typically located at the top of the stamen and is often yellow or orange, making it easily identifiable. - Filament:
- The filament is a slender stalk that supports the anther and holds it in a position where pollinators can easily access the pollen.
- It connects the anther to the base of the flower, ensuring that the pollen is available for transfer to the stigma of the pistil during pollination.
Why Other Options Are Incorrect
- Option (a) "Ovary and style" refers to parts of the pistil, which is the female reproductive structure of the flower.
- Option (c) "Petal and sepal" are parts of the flower that are primarily involved in attracting pollinators and protecting the reproductive organs but are not part of the stamen.
- Option (d) "Stigma and ovule" are also components of the pistil, with the stigma receiving pollen and the ovule developing into seeds after fertilization.
In conclusion, the correct answer is option 'B' because the anther and filament are the two defining components that make up a stamen, highlighting its role in the male reproductive process of flowering plants.
What is the main function of root hairs?- a) Absorb light
- b) Absorb water and nutrients
- c) Protect the root
- d) Store food
Correct answer is option 'B'. Can you explain this answer?
What is the main function of root hairs?
a)
Absorb light
b)
Absorb water and nutrients
c)
Protect the root
d)
Store food
|
|
Get Idea answered |
Root hairs significantly increase the surface area of the root, enhancing the plant's ability to absorb water and essential nutrients from the soil. This increased absorption capability is vital for the plant's growth and overall health.
What part of the plant is responsible for losing water vapor through small pores?- a) Root
- b) Stem
- c) Leaf
- d) Flower
Correct answer is option 'C'. Can you explain this answer?
What part of the plant is responsible for losing water vapor through small pores?
a)
Root
b)
Stem
c)
Leaf
d)
Flower
|
|
Get Idea answered |
Leaves lose water vapor through tiny openings called stomata. This process, known as transpiration, helps regulate water loss and maintains the plant's temperature while also facilitating the uptake of carbon dioxide for photosynthesis.
Which part of the plant is primarily involved in photosynthesis?- a) Root
- b) Stem
- c) Leaf
- d) Flower
Correct answer is option 'C'. Can you explain this answer?
Which part of the plant is primarily involved in photosynthesis?
a)
Root
b)
Stem
c)
Leaf
d)
Flower
|
|
Get Idea answered |
Leaves are the primary sites of photosynthesis in plants, where sunlight, water, and carbon dioxide are converted into glucose and oxygen. This process is essential for providing energy for the plant and is the foundation of the food chain for most life on Earth.
Which of the following animals is adapted to live in a desert?- a)Zebra
- b)Frog
- c)Penguin
- d)Camel
Correct answer is option 'D'. Can you explain this answer?
Which of the following animals is adapted to live in a desert?
a)
Zebra
b)
Frog
c)
Penguin
d)
Camel
|
|
Coders Trust answered |
A camel is perfectly suited for desert life. It has special features like:
- A hump to store fat, which it can use as energy when food is scarce.
- The ability to survive without water for many days because it stores water in its body.
- Long legs and wide hooves to walk on sand without sinking.
- It does not sweat much, so it loses very little water.
Other animals like zebras and frogs need more water, and penguins live in cold places, not deserts.
Chapter doubts & questions for Diversity in the Living World - 6 Months Preparation for Class 6 (CBSE) 2025 is part of Class 6 exam preparation. The chapters have been prepared according to the Class 6 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 6 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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