AP BIOLOGY

Detailed explanation-1: -This statement is false. It is true that stomata are tiny pores in plants, but these pores are not located underground and they do not facilitate water absorption from the soil.

Detailed explanation-2: -The stomata are most common on green aerial parts of plants, particularly the leaves. They can also occur on stems, but less commonly than on leaves. The aerial parts of some chlorophyll-free land plants (Monotropa, Neottia) and roots have no stomata as a rule, but rhizomes have such structures (Esau, 1965, p. 158).

Detailed explanation-3: -Initially, large stomata are formed. These have the ability to induce divisions of their neighbouring cells, creating particular cell patterns around them. Later, small perigenous stomata are generated. As the root grows following seed germination, the stomatal zone overlaps with that of the root hairs.

Detailed explanation-4: -Small pores present on the surface of leaves which help in exchange of gases are called stomata.

Detailed explanation-5: -Stomata are absent in roots because roots are under the ground and no transfer of air takes place there. and sunlight can’t reach there.