Biology
Assertion. Transpiration helps in the descent of sap by producing a suction force acting from the top of a plant.
Reason. Transpiration is the evaporative loss of water through the aerial parts (leaves, stems) of a plant. However, this loss holds much significance for the plant.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.
Transpiration
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Answer
A is False and R is True.
Explanation
Transpiration helps in the ascent of sap by producing a suction force acting from the top of a plant.
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Assertion. Transpiration decreases the amount of moisture in the atmosphere.
Reason. Forests contribute in bringing rain because of transpiration.
- Both A and R are True
- Both A and R are False
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Reason. Nerium is a hydrophytic plant which gets rid of excessive water through the process of transpiration.
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Reason. Chlorophyll is the green pigment which traps solar energy during daytime.
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Reason. Guard cells contain chloroplasts and are mostly located on the lower surface of the leaves. Other cells of the lower epidermis do not contain chloroplasts.
- Both A and R are True
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