JAMB Biology 2011 Objective — Question 5
Question 5 of 60 from the Joint Admissions and Matriculation Board (JAMB) Biology 2011 Objective paper, with the correct answer and a full explanation.
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If Amoeba is placed in a salt solution, the contractile vacuoles would
- A. A. be bursting more frequently
- B. B. be more numerous
- C. C. be formed less frequentlyCorrect
- D. D. grow bigger before they burst
Explanation
The contractile vacuole removes excess water from the protozoan's body. In salt solution the organism loses water instead of gaining it, so the vacuole forms less frequently.
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