Question

Given below is the figure of a stoma. Study the same and answer the following questions:

1. Label the guidelines A and B.
2. Write the exact location of the above-mentioned structures.
3. Mention one important role of structure A.
4. Write three important roles for structure B.
5. Redraw the same figure when structures A are in flaccid condition. When does the flaccid condition occur?

Answer 1

1. A-Guard cell, B-Stoma.
2. Under the dicot leaf, that is, the abaxial side of the leaf, are two guard cells and a stoma.
3. Guard cells support the stomata's opening and closing.
4. 1. Its main purpose is to close and open the leaf pores, therefore exchanging gases.
   2. It helps remove extra water from leaves.
   3. It helps with water transpiration monitoring.
5.