Question

What is stomata? What is its location and function in plants?
[4 Marks]

Answer 1

• Stomata are the small pores present on the epidermis of plant.
• Stomata are found in plant leaves and also in some stems. Specialised cells known as guard cells surround stomata and function to open and close stomatal pores. [2 Marks]

Functions:

• Exchange of gases with atmosphere. For example, stomata is involved in the entry of carbon dioxide to carry out photosynthesis and of oxygen for the process of respiration.
• Transpiration, i.e., loss of water in the form of water vapour.

[2 Marks]