Class 6 Science Chapter 4 Important Question Answers - Getting to Know Plants

Very Short Answer Type Questions

Q1: What is the primary function of leaves in plants?
Ans: The primary function of leaves in plants is photosynthesis.

Q2: Name two examples of climber plants.
Ans: Two examples of climber plants are money plant and grapevine.

Q3: What is the male part of a flower called?
Ans: The male part of a flower is called the stamen.

Q4: What is the female part of a flower called?
Ans: The female part of a flower is called the pistil.

Q5: What is the outermost whorl of a flower called, consisting of green leafy structures?
Ans: The outermost whorl of a flower is called sepals, which consist of green leafy structures.

Q6: What is the part of the stem from where branches or leaves grow called?
Ans: The part of the stem from where branches or leaves grow is called a node.

Q7: What type of root system does maize have?
Ans: Maize has a fibrous root system.

Q8: Which pigment is responsible for the green color of leaves?
Ans: Chlorophyll is responsible for the green color of leaves.

Q9: What do stomata on leaves allow to enter or exit?
Ans: Stomata on leaves allow gases, including carbon dioxide and oxygen, to enter or exit.

Q10: What is the process of loss of water vapor from plants through stomata called?
Ans: The process of loss of water vapor from plants through stomata is called transpiration.

Short Answer Type Questions

Q11: Explain the main function of sepals in a flower.
Ans: The main function of sepals in a flower is to protect the flower at the bud stage and form the outermost whorl of a flower called the calyx.

Q12: Differentiate between climbers and creepers with examples.
Ans: Climbers have thin, long, and weak stems that use external support to grow vertically, such as the money plant. Creepers have long, thin stems that creep on the ground, such as watermelon.

Q13: Describe the structure and function of leaves in plants.
Ans: Leaves are thin, flat, and green structures with chlorophyll. They perform photosynthesis, which is the process of preparing food from carbon dioxide and water in the presence of sunlight and chlorophyll. They also facilitate breathing through stomata.

Q14: Explain the difference between taproot and fibrous root systems with examples.
Ans: Taproot consists of a main root with branches, such as a mango tree. Fibrous root system has many thin roots, such as grass.

Q15: What are the different types of plants based on their height, stem, and branches?
Ans: Plants can be classified into herbs (soft stem), shrubs (bushy with branches above the ground), and trees (tall with a hard main stem).

Long Answer Type Questions

Q16: Describe the structure of a flower, including its various parts and their functions.
Ans: A flower consists of sepals (protective outer layer), petals (colored structures to attract insects), stamens (male part with anther and filament), and pistil (female part with ovary, style, and stigma). Sepals protect the bud, petals attract pollinators, stamens produce pollen, and pistil contains ovules for reproduction.

Q17: Explain the functions of the stem in a plant.
Ans: The stem provides structural support to the plant, bears branches, leaves, flowers, and fruits. It also transports water and minerals from the roots to other parts of the plant and can store food in some plants.

Q18: Compare and contrast herbs, shrubs, and trees based on their characteristics.
Ans: Herbs are small with soft stems, shrubs are bushy and medium-sized, while trees are tall with hard, woody stems. Herbs are used for their leaves or seeds, shrubs may have medicinal or ornamental value, and trees provide wood, fruits, and shade.

Q19: Explain the importance of chlorophyll in leaves and its role in photosynthesis.
Ans: Chlorophyll is a green pigment that enables leaves to capture sunlight for photosynthesis. Photosynthesis is the process by which plants convert carbon dioxide and water into glucose and oxygen using the energy from sunlight.

Q20: Discuss the functions of roots in plants and explain the differences between taproot and fibrous root systems.
Ans: Roots anchor the plant in the soil, absorb water and minerals, and sometimes store food. Taproots have a main root with branches (e.g., carrots), while fibrous root systems have many thin roots (e.g., grass) that spread out in the soil for absorption.