Assertion (A): K+ ion accumulation found in Nitella depends on its respiratory activity.
Reason (R): Absorption of all ions in plants completely depends on the usage of metabolic energy.
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Guttation is the result of |
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Humidity in atmosphere decreases rate of |
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Living cells placed in isotonic solution (0.9% saline) retain their size and shape. This is based on the concept of |
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Hydathodes are also called |
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When pea seeds and wheat grains are soaked in water, pea seeds showed more swelling than the wheat. The reason is |
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A soil sample is found to have 25% of its volume occupied by soil water. Of this, 10% is hygroscopic water and .the remaining is capillary water. What is the field capacity of this soil? |
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When the concentration of the soil solutes is low, the absorption of water is |
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Which one of the followings establishes the barrier to the apoplastic movement of solutes into the vascular cylinder? |
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The direction of water in the leaflets of Cycas from midrib is |
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Study the following lists and choose the correct option.
The correct match is : |
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