Respiration (Exchange Gases; Cellular Respiration-Glycolysis, Fermentation (Anaerobic), TCA Cycle and Electron Transport System (Aerobic); Energy Relations- Number of ATP Molecules Generated; Amphibolic Pathways; Respiratory Quotient) NEET Questions

Biology - Plant Physiology

Respiration (Exchange Gases; Cellular Respiration-Glycolysis, Fermentation (Anaerobic), TCA Cycle and Electron Transport System (Aerobic); Energy Relations- Number of ATP Molecules Generated; Amphibolic Pathways; Respiratory Quotient) MCQ Questions


1.
Which structure in human lungs is the primary site of gas exchange?
A.
Alveoli
B.
Bronchioles
C.
Trachea
D.
Pharynx
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ANSWER :
A. Alveoli
2.
What is the end product of glycolysis?
A.
Lactate
B.
Pyruvate
C.
Acetyl CoA
D.
Fructose-6-phosphate
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ANSWER :
B. Pyruvate
3.
In anaerobic respiration in muscles, pyruvate is converted into?
A.
Acetyl CoA
B.
Lactic acid
C.
Ethanol
D.
Carbon dioxide
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ANSWER :
B. Lactic acid
4.
Which of the following produces the maximum ATP during aerobic respiration?
A.
Glycolysis
B.
TCA cycle
C.
Electron transport chain
D.
Fermentation
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ANSWER :
C. Electron transport chain
5.

Terminal oxidase enzyme in mitochondria is:

NEET - 2017

A.

Cytochrome c oxidase

B.

Cytochrome b

C.

ATP synthase

D.

Cytochrome c

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ANSWER :

A. Cytochrome c oxidase

6.
Where does the TCA (Krebs) cycle occur in eukaryotic cells?
A.
Cytoplasm
B.
Mitochondrial matrix
C.
Nucleus
D.
Endoplasmic reticulum
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ANSWER :
B. Mitochondrial matrix