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What Are Stomata? Give Two Functions of Stomata. - CBSE Class 7 - Science

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Question

What are stomata? Give two functions of stomata.

Solution 1

Stomata are tiny pores present on the surface of a leaf.

Functions of stomata:

1) Stomata help in the exchange of gases.

2) Evaporation of water from the leaf surface occurs through stomata.

Solution 2

There are small openings on the lower surface of the leaves. These pores are called stomata. These openings are surrounded with guard cells.

Functions of stomata:

1) It helps in the transpiration of water, i.e., the loss of excess water from the plant.

2) Loss of water from the stomata creates an upward pull, i.e., suction pull which helps in absorption of water from the roots.

3) They help in exchange of gases.

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APPEARS IN

 NCERT Solution for Science Textbook for Class 7 (2018 to Current)
Chapter 11: Transportation in Animals and Plants
Q: 6 | Page no. 132
Solution What Are Stomata? Give Two Functions of Stomata. Concept: Excretion in Animals.
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