Explore topic-wise MCQs in Biology.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the respiratory quotient for organic acids?

A. More than 1
B. Less than zero
C. Zero
D. Less than one but greater than Zero
Answer» B. Less than zero
2.

What is the RQ value for tripalmitin?

A. 0.9
B. 1
C. 0.3
D. 0.7
Answer» E.
3.

What is the value of RQ in carbohydrates?

A. 0.7
B. 0.3
C. 1
D. 10
Answer» D. 10
4.

On which of the following does the respiratory quotient depend?

A. The respiratory concentration of Oxygen
B. The respiratory substrate used during respiration
C. The volume of Carbon-dioxide evolved
D. Energy evolved during respiration
Answer» C. The volume of Carbon-dioxide evolved
5.

What is the full form of RQ?

A. Respiratory Quotient
B. Reservatory Quotient
C. Reservation Q-value
D. Reservatory Q-value
Answer» B. Reservatory Quotient
6.

Fermentation accounts for the complete breakdown of glucose and sucrose.

A. True
B. False
Answer» C.
7.

What is the speed of oxidation of NADH in case of fermentation?

A. Vigorous
B. Very slow
C. Slow
D. Fast
Answer» D. Fast
8.

How many ATP molecules are gained during fermentation?

A. 8 ATP
B. 2 ATP
C. 10 ATP
D. 4 ATP
Answer» C. 10 ATP
9.

How many ATP molecules are gained during aerobic respiration?

A. 2 ATP
B. 10 ATP
C. 35 ATP
D. 38 ATP
Answer» E.
10.

When is the ATP utilised?

A. It is utilised as and when needed
B. It is never utilised
C. It is only in the stored form
D. Only when the cell is about to replicate
Answer» B. It is never utilised
11.

Do all the respiratory pathways work simultaneously?

A. No, not at all
B. They take place one after the other
C. Yes, they work simultaneously
D. Sometimes they work independently
Answer» D. Sometimes they work independently
12.

All carbohydrates except for glucose can be respired in a respiratory pathway.

A. True
B. False
Answer» C.
13.

Which of the following is not an assumption of the respiratory balance sheet?

A. NADH synthesised in glycolysis is transferred into mitochondria
B. None of the intermediates is used to synthesise other compounds
C. Respiration is a sequential pathway
D. Energy can never be stored
Answer» E.
14.

Which of the following is an assumption of the respiratory balance sheet?

A. Respiration is a sequential pathway
B. Respiration does not exist
C. Energy cannot be calculated in a respiratory pathway
D. Energy is always lost in the form of heat in respiration
Answer» B. Respiration does not exist
15.

Is it possible to make calculations of the net gain of ATP?

A. Not possible
B. Possible only theoretically
C. Possible only in reality
D. Sometimes possible and sometimes not
Answer» C. Possible only in reality