Multiple choice

Which among the following statements does not characterise the stomata of the plants?

  1. The gas exchange that occurs when stomata are open facilitates photosynthesis.

  2. Stomata are the openings that are generally present on the upper surface of the leaves.

  3. Stomata lie in the epidermis of the leaves.

  4. Stomata are present in the sporophyte generation of all the land plants.

  5. The guard cells are specialised parenchyma cells.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Stomata are the openings that are generally present on the lower surface of the leaves through which the gases and water vapour diffuse in and out easily. The oxygen diffuses in through the stomata and then enters the leaf cells. Similarly, the carbon dioxide produced by the leaf cells diffuses out through the stomata.

Keep practicing — related questions