All Courses
Get the App Signup / Login
Sign in Open App

All questions of Sources of Food for Class 6 Exam

Which macronutrient is the body's primary source of energy?
  • a)
    Carbohydrates
  • b)
    Proteins
  • c)
    Fats
  • d)
    Fiber
Correct answer is option 'A'. Can you explain this answer?

Nilanjan Unni answered
Carbohydrates as the Primary Source of Energy
Carbohydrates are the body's primary source of energy for several reasons:

Quick Energy Source:
- Carbohydrates are broken down into glucose, which is the body's preferred source of energy.
- Glucose is readily available for immediate use by cells to fuel various bodily functions.

Efficient Energy Production:
- Carbohydrates provide a quicker and more efficient source of energy compared to proteins and fats.
- The body can quickly convert carbohydrates into energy through processes like glycolysis and the citric acid cycle.

Stored Energy:
- Excess glucose is converted into glycogen and stored in the liver and muscles for later use.
- This stored glycogen can be quickly accessed during periods of high energy demand or when glucose levels are low.

Brain Fuel:
- The brain relies heavily on glucose as its primary source of fuel.
- Carbohydrates ensure that the brain receives a continuous supply of energy for optimal functioning.
In conclusion, while proteins and fats also play important roles in the body, carbohydrates are the body's main source of energy due to their quick availability, efficient conversion, and role in sustaining vital functions such as brain activity.
Clear all your Class 6 doubts with EduRev

What is the primary source of food for animals?
  • a)
    Soil
  • b)
    Air
  • c)
    Water
  • d)
    Surroundings
Correct answer is option 'D'. Can you explain this answer?

Saranya Chakraborty answered
Primary Source of Food for Animals
Animals primarily obtain their food from their surroundings, which include plants, other animals, and even fungi.

Plants
- Herbivores feed directly on plants as their primary source of food. They consume leaves, fruits, seeds, and other plant parts for nourishment.
- Carnivores, in turn, feed on herbivores that have consumed plants. This creates a food chain where energy is transferred from plants to herbivores to carnivores.

Other Animals
- Some animals are omnivores, which means they consume both plants and other animals. This allows them to obtain a variety of nutrients from different sources.
- Scavengers feed on dead animals, helping to recycle nutrients back into the ecosystem.

Fungi
- Some animals, like certain insects, consume fungi as part of their diet. Fungi play a crucial role in decomposing organic matter and recycling nutrients in the environment.

Conclusion
In conclusion, animals rely on their surroundings as the primary source of food. Whether it is plants, other animals, or fungi, each component of the ecosystem plays a vital role in sustaining the food chain and ensuring the survival of different species.

How do herbivores obtain nutrients from their food?
  • a)
    By hunting and killing other animals
  • b)
    By feeding on decaying matter
  • c)
    By consuming plants
  • d)
    By stealing food from other animals
Correct answer is option 'C'. Can you explain this answer?

Vp Classes answered
Herbivores are animals that primarily feed on plants to obtain nutrients. They have specialized digestive systems that allow them to break down plant material and extract the necessary nutrients for their survival. For example, cows have complex stomachs with multiple chambers to digest plant cellulose efficiently.

Which nutrient is important for various metabolic functions in the body, including energy production and hormone regulation?
  • a)
    Carbohydrates
  • b)
    Proteins
  • c)
    Fats
  • d)
    Minerals
Correct answer is option 'D'. Can you explain this answer?

Shiksha Academy answered
Minerals are essential for various metabolic functions in the body, including energy production, hormone regulation, bone health, and immune function. They play crucial roles as cofactors for enzymes and are involved in numerous physiological processes essential for overall health and well-being.

Why is food essential for all living organisms?
  • a)
    Provides shelter
  • b)
    Aids in reproduction
  • c)
    Provides energy
  • d)
    Maintains body temperature
Correct answer is option 'C'. Can you explain this answer?

Coachify answered
Food is crucial for all living organisms as it provides the energy needed for various biological processes. Through the process of digestion, food is broken down into nutrients that are then used by the body to fuel activities such as growth, repair, and movement. This energy is vital for maintaining bodily functions and overall health.

Which nutrient plays a key role in the absorption of fat-soluble vitamins in the body?
  • a)
    Water
  • b)
    Fiber
  • c)
    Fats
  • d)
    Minerals
Correct answer is option 'C'. Can you explain this answer?

Gunjan Lakhani answered
Fats play a key role in the absorption of fat-soluble vitamins (such as vitamins A, D, E, and K) in the body. These vitamins require fat for absorption, and the presence of dietary fats helps facilitate their absorption and utilization by the body.

Which of the following is NOT a type of plant-based food that comes from seeds?
  • a)
    Cereals
  • b)
    Pulses
  • c)
    Fruits
  • d)
    Nuts
Correct answer is option 'C'. Can you explain this answer?

Eduskill Classes answered
Fruits are not a type of plant-based food that comes directly from seeds. While fruits develop from flowers and contain seeds, they are considered a separate category of plant-based foods. Cereals, pulses, nuts, and cooking oils are examples of plant-based foods that come from seeds. Including a variety of seeds in our diet offers a range of nutrients beneficial for overall health.

What is the primary purpose of sprouting seeds before consuming them?
  • a)
    To increase the seed's size
  • b)
    To enhance the seed's flavor
  • c)
    To improve the seed's nutritional value
  • d)
    To prevent the seed from germinating
Correct answer is option 'C'. Can you explain this answer?

Eduskill Classes answered
The primary purpose of sprouting seeds before consuming them is to improve the seed's nutritional value. Sprouting increases the availability of nutrients and makes them more easily digestible. During the sprouting process, the levels of vitamins, minerals, and enzymes in the seeds increase, enhancing their overall nutritional content. Including sprouts in our diet can provide a concentrated source of beneficial nutrients essential for our well-being.

How do plants primarily make and store food?
  • a)
    Through a process called photosynthesis
  • b)
    By absorbing food from the soil
  • c)
    By converting water into nutrients
  • d)
    Through a process called respiration
Correct answer is option 'A'. Can you explain this answer?

Shiksha Academy answered
Plants primarily make and store food through a process called photosynthesis. During photosynthesis, plants use sunlight to convert carbon dioxide and water into glucose (a type of sugar) and oxygen. This process occurs in the chloroplasts of plant cells and is crucial for the plant's survival. An interesting fact is that photosynthesis is not only essential for plants but also plays a vital role in maintaining the oxygen-carbon dioxide balance in the Earth's atmosphere.

Which of the following is a key function of food in the human body?
  • a)
    Inducing sleep
  • b)
    Enhancing memory
  • c)
    Aiding growth
  • d)
    Stimulating creativity
Correct answer is option 'C'. Can you explain this answer?

Vp Classes answered
One of the key functions of food in the human body is to aid in growth. Nutrients obtained from food provide the necessary building blocks for the body to grow and develop properly, especially during stages of childhood and adolescence. Proteins, vitamins, minerals, and other essential nutrients in food play crucial roles in promoting healthy growth and development.

What is the primary function of edible bulbs such as onions and garlic?
  • a)
    Energy storage
  • b)
    Water absorption
  • c)
    Reproduction
  • d)
    Photosynthesis
Correct answer is option 'A'. Can you explain this answer?

Eduskill Classes answered
Edible bulbs like onions and garlic primarily serve the function of storing energy for the plant. These underground stems store nutrients that the plant can utilize during periods of dormancy or when resources are scarce.

Which of the following animals is an example of an omnivore?
  • a)
    Lion
  • b)
    Cow
  • c)
    Bear
  • d)
    Eagle
Correct answer is option 'C'. Can you explain this answer?

Vp Classes answered
Bears are omnivores, meaning they have a diet that includes both plants and animals. They have adaptations that allow them to consume a variety of foods, such as berries, nuts, fish, and small mammals. This diverse diet provides them with the necessary nutrients to thrive in different environments.

Which of the following is a characteristic of edible mushrooms?
  • a)
    Rich in carbohydrates
  • b)
    Source of vitamin C
  • c)
    High in protein
  • d)
    Low in fiber
Correct answer is option 'C'. Can you explain this answer?

Praveen Kumar answered
Edible mushrooms are known for being a good source of protein. They are low in calories and fat while offering a decent amount of dietary fiber, vitamins, and minerals. Mushrooms also contain all the essential amino acids needed by the human body, making them a valuable addition to a balanced diet.

How do plants acquire their food?
  • a)
    Through hunting and gathering
  • b)
    By absorbing nutrients from soil
  • c)
    By consuming other organisms
  • d)
    Through photosynthesis
Correct answer is option 'D'. Can you explain this answer?

Vp Classes answered
Plants make their own food through a process called photosynthesis. During photosynthesis, plants use sunlight, water, and carbon dioxide to produce glucose (sugar), which serves as their source of energy. This process is essential for the survival of plants and is also responsible for producing oxygen as a byproduct, which is crucial for all living organisms.

Which nutrient is essential for building and repairing tissues in the body?
  • a)
    Carbohydrates
  • b)
    Proteins
  • c)
    Fats
  • d)
    Vitamins
Correct answer is option 'B'. Can you explain this answer?

Gunjan Lakhani answered
Proteins are essential for building and repairing tissues in the body. They are made up of amino acids, which are the building blocks of protein. Proteins play a crucial role in the growth and maintenance of muscles, organs, skin, and other body tissues.

Which part of a plant is commonly used for food and contains nutrients such as vitamins, minerals, and fiber?
  • a)
    Stems
  • b)
    Leaves
  • c)
    Bulbs
  • d)
    Flowers
Correct answer is option 'B'. Can you explain this answer?

Eduskill Classes answered
Leaves are a part of the plant commonly used for food and are rich in nutrients such as vitamins, minerals, and fiber. They play a vital role in the plant's photosynthesis process, where they absorb sunlight and convert it into energy. Including leaves in our diet provides essential nutrients necessary for maintaining good health. An interesting fact is that different types of edible leaves, such as spinach, kale, and lettuce, offer diverse nutritional benefits.

What do scavengers primarily feed on in an ecosystem?
  • a)
    Dead plants and animals
  • b)
    Fruits and seeds
  • c)
    Other animals
  • d)
    Insects and small mammals
Correct answer is option 'A'. Can you explain this answer?

Praveen Kumar answered
Scavengers play a crucial role in ecosystems by feeding on dead plants and animals. They help recycle nutrients by breaking down organic matter, which contributes to the overall health of the environment. For example, vultures are well-known scavengers that primarily feed on carcasses, aiding in the decomposition process and nutrient cycling in the ecosystem.

What is the key role of honeybees in the production of honey?
  • a)
    Pollination
  • b)
    Seed dispersal
  • c)
    Water purification
  • d)
    Soil aeration
Correct answer is option 'A'. Can you explain this answer?

Dr Manju Sen answered
Honeybees play a crucial role in the production of honey through pollination. As they collect nectar from flowers, bees transfer pollen between plants, facilitating fertilization and the subsequent production of fruits and seeds.

What is a key role of decomposers in an ecosystem?
  • a)
    To hunt and prey on other organisms
  • b)
    To provide energy for plants through photosynthesis
  • c)
    To break down dead organisms and organic matter
  • d)
    To compete with scavengers for food sources
Correct answer is option 'C'. Can you explain this answer?

Subset Academy answered
Decomposers play a vital role in ecosystems by breaking down dead organisms and organic matter into simpler substances. This process releases essential nutrients back into the soil, making them available for plants to absorb and use for growth. Without decomposers, organic matter would accumulate, and nutrients would be locked away, hindering the recycling of key elements in the ecosystem.

Chapter doubts & questions for Sources of Food - Eureka Plus Class 6: Book Solutions, Notes & Worksheets 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.

Chapter doubts & questions of Sources of Food - Eureka Plus Class 6: Book Solutions, Notes & Worksheets in English & Hindi are available as part of Class 6 exam. Download more important topics, notes, lectures and mock test series for Class 6 Exam by signing up for free.

Signup to see your scores go up within 7 days!

Study with 1000+ FREE Docs, Videos & Tests
10M+ students study on EduRev
© EduRev
Education Revolution
Signup to see your scores go up
within 7 days!
Takes less than 10 seconds to signup