MCQ Questions

Chapter

Question No. 1

True or False

Answer :

1. Leaves have a green substance called glucose.

2. Air enters leaves through stomata.

3. Plants take in oxygen and give out carbon dioxide during respiration.

4. Iodine solution gives brown colour in the presence of starch.

5. Animals depend on plants for carbon dioxide.

Question No. 2

Short Type Questions

Answer :

1. What do you mean by the term ‘photosynthesis’ ?

2. In what form is extra food stored in plants ?

3. What will you find on the underside of a leaf if you put it under a microscope ?

4. How do stomata help a plant ?

5. What do green leaves need in order to make food ?

6.What is the role of veins in the leaf ?

Question No. 3

Long Type Questions

Answer :

1. Name the various parts of a leaf and mention their functions.

2. Prove through an experiment that sunlight is necessary for photosynthesis.

3. Describe the process of photosynthesis in plants.

4. What is the role of plants in maintaining a balance in Nature ?

5. Explain how plants and animals depend on each other for food.

Question No. 4

A flat part of the leaf called the _____________.

Answer :

leaf blade

midrib

veins

lamina

Question No. 5

The gas given out by plants during photosynthesis is____________.

Answer :

carbon dioxide

oxygen

hydrogen

nitrogen

Question No. 6

In the presence of sunlight, green leaves change carbon dioxide and water into_____________.

Answer :

glucose

chlorophyll

stomata

protein

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