OBJECTIVE LIFE SCIENCE
PLANT PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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produce more seeds
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make more food
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drop their leaves
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open their stomata
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Detailed explanation-1: -Transpiration: When the water becomes excess for the plant body, the plants need to get rid of the extra water. Transpiration is the release of water from the stomatal openings of the leaves through the evaporation process. Excess water in plants is lost in the water vapor form.
Detailed explanation-2: -Water loss through transpiration can be reduced by closing the stomata in the leaves using a substance called ABA. When the stomata is closed photosynthesis will decrease because no CO2 can enter through the closed stomata. Less photosynthesis means less energy is produced by the plant and the plant stops growing.
Detailed explanation-3: -Transpiration is the process by which plants get rid of excess water through the stomata. The excess water is lost in the form of vapours by transpiration.
Detailed explanation-4: -Stomata respond to hydraulic perturbations in plant created by water evaporation and subsequent loss. In rainy season, stomata remain open even at night but in summer they either remain close or partially open to conserve water.