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In Amoeba , contractile vacuole is prese...

In Amoeba , contractile vacuole is present

A

Near the trailing end

B

Near the advancing end

C

At the middle of body

D

Anywhere inside the body

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The correct Answer is:
A
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Amoeba has a contractile vacuole for

Statement 1: In plants, the tonoplast facilitates the transport of a number of ions and other materials against concentration gradients into the vacuole. Statement 2: In amoeba, the contractile vacuole is important for osmoregulation and excretion.

Assertion : Contractile vacuole is present in the endoplasm of amoeba. Reason : They are resposible for osmoregulation.

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ARIHANT NEET-PROTISTA-CHAPTER EXERCISES ((A) TAKING IT TOGETHER (Assorted questions of the chapter for advance level practice))
  1. Which of the following has only one host ?

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  2. Amoeba is placed in phylum - protozoa, because of

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  3. In Amoeba , contractile vacuole is present

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  4. What is cryptomerozoite of plasmodium?

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  5. Encysted stage is not known to occur in life of

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  6. RCBs are present in the food vacuole of

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  7. Sporozoite , infective of plasmodium parasite contains

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  8. Movement of food vacuole in paramecium along a definite path is known ...

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  9. In paramecium the division of macronucleus during binary fission is

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  10. Trichocysts are found in

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  11. A dinoflagellate in which mesokaryon does not occur in somatic cells i...

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  12. Night visibility of plants is due to

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  13. Chromosomes are without histone are found in

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  14. Which species of protist are known as the whirling whips because of th...

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  15. The outer covering of which organism is used as abrasive for metal pol...

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  16. Decemposer protists are

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  17. Schuffner s granues (dots) are found in malaria patient in the cells ...

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  18. Beside RBCs, plasmodium attacks one more type of human body cells duri...

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  19. Ciliated protozoans are aquatic, actively moving organisms, because of...

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  20. Ciliated protozoans have a cavity, that opens to the outside of the ce...

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