Free Biomolecules (Daily Quiz: 10) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Lactic dehydrogenase (LDH) which catalyzes pyruvate to lactate is an example of

(a) Antienzyme

(b) Apoenzyme

(c) Isoenzyme

(d) Coenzyme

Question-2

The effectiveness of an enzyme is affected least by

(a) concentration of the substrate.

(b) temperature.

(c) original activation energy of the system.

(d) concentration of the enzyme.

Question-3

Assertion:
Oil containing PUFA are good for health.
Reason:
They reduce blood cholesterol level. Thus, decreases chance of heart diseases.

(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-4

The catalytic efficiency of two different enzymes can be compared by the

(a) pH optimum value

(b) formation of the product

(c) $K_m$ value

(d) molecular size of the enzyme

Question-5

Genes are packaged into a bacterial chromosome by

(a) basic proteins

(b) histones

(c) acidic proteins

(d) actin