1.

Distinguish between the following :Active absorption and Passive absorption.

Answer»
Active absorptionPassive absorption
1. Active absorption is a physiological process.1. Passive absorption is a physical process.
2. Active absorption takes place by the process of osmosis.2. Passive absorption takes place by suction force.
3. It involves the expenditure of energy on the part of absorbing cells.3. It does not involve the expenditure of energy on the part of absorbing cells.
4. Active absorption takes place against the concentration gradient.4. Passive absorption takes place along the concentration gradient.


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