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Animal Kingdom question

2004 · Q32
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Animal Kingdom question

2004 · Q32

NEETBiologyAnimal KingdomMCQ+4 / −1
When a fresh-water protozoan possessing a contractile vacuole, is placed in a glass containing marrine water, the vacuole will
  1. A
    increase in number
  2. B
    disappear
  3. C
    increase in size
  4. D
    decrease in size
View written solutionFree

Correct answer: D

A fresh water protozoan when placed in marine water medium, loss of water takes place i.e., exosmosis. Hence the contractile vacuole will decrease in size.

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