GOOD EVENING
MY QUESTION
DESCRIBE THE STRUCTURE AND FUNCTION OF STOMATA.
Answers
The stomatal pores are very minute and are covered with crescent shaped guard cells.
Outer wall of guard cells are thin and the inner wall is thick. Each guard cell contains cytoplasm, a nucleus and plenty of chloroplasts.
There is a single large air chamber below the stomatal pore.
Functions of stomata:
The gaseous exchange (CO2and O2) between the intercellular spaces of plant cell and the outer air takes place through stomata during photosynthesis
During respiration plants receive O2 and release CO2through stomata
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Here's your answer
The plants 'breathe' through their leaves? Tiny openings called stomata allow plants to exchange gases necessary for cellular processes, such as photosynthesis.
Stomata: Definition
Take a deep breath in and then let it out. Breathing to you is a very natural function that you usually do without even thinking about it. When you breathe, you are taking in oxygen and releasing carbon dioxide. Taking in oxygen is very important because it allows your cells to do things, like make energy from the food you eat.
Plants 'breathe' too, but they do it through tiny openings in leaves called stomata (singular: stoma). Stomata open and close to allow the intake of carbon dioxide and the release of oxygen. It's very important that they do this because this is the very oxygen that we ourselves need to breathe!
Function
The gas exchange that occurs when stomata are open facilitates photosynthesis. Photosynthesis is the process by which plants convert sunlight into usable energy. During photosynthesis, carbon dioxide is taken in from the atmosphere through the stomata and oxygen is released as a waste product. Both photosynthesis and the gas exchange that powers it are essential to the plant's survival.
An unfortunate side effect of the stomata opening is that it allows for water loss. Unlike you and me, plants do not need to sweat to cool off and prefer to keep their water inside; however, because the gas exchange of photosynthesis is so vital, some water loss through stomata is necessary. This process of plant water loss is called transpiration.
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