General Science MCQs

Biology - Respiration Questions with solutions MCQs

1. A high respiratory quotient indicates:

A

Absence of respiration

B

Aerobic respiration

C

Anaerobic respiration

D

Inhibition of respiration

Biology - Respiration Veterinary Pharmacist 2025
Correct Answer : B
Explanation :

High RQ suggests carbohydrate metabolism and aerobic respiration.

Correct Answered :

Wrong Answered :

2. Partial pressure of oxygen in alveolar air is:

A

159 mm Hg

B

90 mm Hg

C

104 mm Hg

D

45 mm Hg

Biology - Respiration Veterinary Pharmacist 2025
Correct Answer : C
Explanation :

The alveolar pO2 is approximately 104 mm Hg.

Correct Answered :

Wrong Answered :

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