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NEET Sample Paper NEET Sample Test Paper-14

  • question_answer
    When a fresh water protozoan possessing a contractile vacuole is placed in a glass containing marine water, the vacuole will

    A)  Increase in number

    B)  Disappear

    C)  Increase in size

    D)  Decrease in size

    Correct Answer: B

    Solution :

    A fresh water protozoan when placed in marine water medium faces a condition of preventing entry of salts and loss of water. Hence, the contractile vacuole will disappear.


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