51. NCERT objective type questions

Exercise condition:

3 m.

Choose the best answer:

1. Which of the following reproduces only inside a host cell?

Virus
Fungus
Bacteria
Amoeba

2. Match the microorganisms given in the Column A to the group to which they belong in Column B.

(a) Lactobacillus - (i) Algae
(b) Aspergillus - (ii) Protozoa
(c) Spirogyra - (iii) Fungi
(d) Paramecium - (iv) Bacteria

(a) —(i), (b)—(iii), (c)—(ii), (d)—(iv)
(a) —(iv), (b)—(iii), (c)—(i), (d)—(ii)
(a) —(v), (b)—(iii), (c)—(i), (d)—(ii)

3. Assertion: Most respiratory tract infections are acquired by inhaling contaminated air.

Reason: Diphtheria is one of the airborne disease caused by virus.

Both Assertion and reason are correct, and reason is the correct explanation of assertion.
Both Assertion and reason are correct, but reason is not the correct explanation of assertion.
Assertion is correct, but reason is false.
Assertion is false, but reason is correct.

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