Free Microbes In Human Welfare (Daily Quiz: 18) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Which of the following serves as a fertiliser in paddy fields?

(a) Azospirillum

(b) Anabaena

(c) Nostoc

(d) Both (a) and (b)

Question-2

Which of the following statement(s) represents the main benefits of LAB?

1. Increase vitamin-$B_{12}$ amount, thus increasing nutrient quality of milk.
2. Check disease-causing microbes in stomach.

Choose the correct option.

(a) Only II

(b) Only I

(c) I and II

(d) None of these

Question-3

What is shown in this figure?

(a) Sewage treatment plant

(b) Biogas plant

(c) Fermentors

(d) Distillation apparatus

Question-4

Assertion:
Prions are proteinaceous infectious agents.
Reason:
Prions are made up of nucleoproteins.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

(c) If the assertion is true but the reason is false.

(d) If both the assertion and reason are false.

Question-5

Assertion:
Bacterial colony can be seen with the naked eyes.
Reason:
Bacteria are macro-organism.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

(c) If the assertion is true but the reason is false.

(d) If both the assertion and reason are false.