what is a guard cell?explain in detail..
do not copy or paste from google..
Answers
Guard cells are specialized plant cells in the epidermis of leaves, stems and other organs that are used to control gas exchange. They are produced in pairs with a gap between them that forms a stomatal pore
✍️Structure✍️
As mentioned, guard cells are bean/kidney-shaped cells located on plant epidermis. As such, they, like trichomes and pavement cells, are also epidermal cells. Between each pair of guard cells is a stoma (a pore) through which water and gases are exchanged.
✍️ Function ✍️
Guard cells are located in the leaf epidermis and pairs of guard cells surround and form stomatal pores, which regulate CO2 influx from the atmosphere into the leaves for photosynthetic carbon fixation. Stomatal guard cells also regulate water loss of plants via transpiration to the atmosphere.
Hope it helped u ✌️
Answer:
Guard cells are cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing the stomata. ... In figure B, the guard cells have lost water, which causes the cells to become flaccid and the stomatal opening to close. This may occur when the plant has lost an excessive amount of water.