Question

Describe the walls of guard cells.

Answer 1

Guard cells:

1. Guard cells are a pair of bean or kidney-shaped cells that surround the stomata.
2. These specialized cells are found on the plant's epidermis or the outer layer of the plant.
3. The outer structure of the guard cell is comprised of polysaccharide-based wall polymers that are extremely strong and elastic.
4. The stomata are specialized cells found in the epidermis of tree leaves and needles.
5. They facilitate exchanges of water and carbon dioxide between plants and the atmosphere.