Explain the structure of stomata
Answers
A stoma is a minute pore on the epidermis of aerial parts of plants through which exchange of gases and transpiration takes place.
Each stoma is surrounded by a pair of kidney shaped guard cells. Each guard cell is a modified epidermal cell showing a prominent nucleus, cytoplasm and plastids. The wall of the guard cell is differentially thickened. The inner wall of each guard cell facing the stoma is concave and is thick and rigid. The outer wall is convex and is thin and elastic.
The guard cells are surrounded by a variable number of epidermal cells called subsidiary cells
Answer:
Tiny pores present on the surface of the leaves are called Stomata.
EXCHANGE OF GAS IS OCCUR THROUGH THIS STOMATA FOR PHOTOSYNTHESIS.
The green dots are cell organelles called chloroplast which contain chlorophyll.
Opening and closing of stomata is controlled by the guard cell.
When water enter to stomata, it will swell,leads to the opening of stomata.
When water loss from stomata ,it will shrink , which leads to the closing of stomata.
KOH is used to absorb CO2.
Large amount can be lost through stomata,the plant closes these pores when it does not need CO2.
Explanation:
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