NEET 2008 Biology question

Vacuole in a plant cell

(1)Lacks membrane and contains water and excretory substances
(2)Is membrane-bound and contains storage proteins and lipids
(3)Is membrane-bound and contains water and excretory substancesCorrect
(4)Lacks membrane and contains air

Answer: (3)

Solution

The plant vacuole is bounded by a single selectively permeable membrane, the tonoplast, and contains water, sap, minerals, salts, amino acids, pigments and excretory (waste) substances. Hence option (3). (1)

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Question ID VK-090045