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A biologist was experimenting with a pro...

A biologist was experimenting with a protozoan and noticed that the animal's contractile vacuole stopped working although the other parts of the organism seemed to be in good health and exhibited normal activity. Which of the following experiment was likely to have produced this result?

A

Changing the pH of the medium from 7.00-6.50

B

Cooling of the medium from `20-10^(@)C`

C

Transferring the protozoan from seawater to pond water

D

Transferring to protozoan from pond water to seawater

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The correct Answer is:
D
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ARIHANT NEET-PROTISTA-CHAPTER EXERCISES ((A) TAKING IT TOGETHER (Assorted questions of the chapter for advance level practice))
  1. Malaria parasite can be best obtained from its patient

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  2. The function of the neuromotor system of paramecium is

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  3. In paramecium the coordinated movement of row of cilia cuases the wate...

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  4. What is incorrect about Paramecium

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  5. During cunjugation in paramecium

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  6. Prepatent period in malarial infection is

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  7. Diatomaceous earth is used for insulating boiler and steam pipes becau...

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  8. How many of the following features are common in dinoflagellates ? C...

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  9. Choose the incorrect match.

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  10. How many of the following parts you will not be able to find in the b...

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  11. Identify the statement which is incorrect about euglenoids.

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  12. The function of contractile vacuole is increased when

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  13. Which one of the following statements is correct?

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  14. Sometime, Trypanosoma passes into internal organs like spleen, lungs, ...

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  15. In the body of tse-tse fly, three morphological forms of trypanosoma g...

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  16. Full grown amoeba undergoes binary fission. The total surface area of ...

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  17. If an amoeba is kept in distilled water, its contractile vacuole will

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  18. Shivering with cold, i.e. the attack of the disease is epxerienced by ...

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  19. Select the correct combination of characteristics for slime moulds.

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  20. A biologist was experimenting with a protozoan and noticed that the an...

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