Question

Which of the following is true about stomata?

• A. They are found on the epidermis.
• B. They consist of two specialized cells- guard cells and stoma.
• C. Their main function is to allow gases into and out of the leaf.
• D. All the above

Answer 1

The correct option is D

All the above

Stomata are minute apertures found typically on the outer leaf skin layer, also known as the epidermis.

They consist of two specialized cells, called guard cells that surround a tiny pore called stoma. These cells are dumb-bell shaped.

Their main function is to allow gases such as carbon dioxide, water vapour and oxygen to move rapidly into and out of the leaf.

Stoma in a tomato leaf