The osmotic expansion of a cell kept in water is chiefly regulated by

1. Mitochondria 2. Vacuoles
3. Plastids 4. Ribosomes
Subtopic:  Vacuole |
 90%
Level 1: 80%+
AIPMT - 2014
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Vacuole in a plant cell

1. is membrane-bound and contains storage proteins and lipids
2. is membrane-bound and contains water and excretory substances
3. lacks membrane and contains air
4. lacks membrane and contains water and excretory substances
Subtopic:  Vacuole |
 89%
Level 1: 80%+
AIPMT - 2008
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Please attempt this question first.