Match List I with List II 
List I List II
A. Oxidative decarboxylation I. Citrate synthase
B. Glycolysis II. Pyruvate dehydrogenase
C. Oxidative phosphorylation III. Electron transport system
D. Tricarboxylic acid cycle IV. EMP pathway 
Choose the correct answer from the options given below:
Options: A B C D
1. II IV III I
2. III IV II I
3. II IV I III
4. III I II IV

Subtopic:  Aerobic Respiration | Kreb's Cycle |
 72%
From NCERT
NEET - 2023
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How many times decarboxylation occurs during each TCA cycle?
1.Thrice2.Many
3.Once4.Twice
Subtopic:  Kreb's Cycle |
 71%
From NCERT
NEET - 2023
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Fatty acids are connected with the respiratory pathway through:
1. Acetyl CoA
2. α - Ketoglutaric acid
3. Dihydroxy acetone phosphate
4. Pyruvic acid
Subtopic:  Amphibolic Nature of Respiration |
 80%
From NCERT
NEET - 2023
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Assertion (A): ATP acts as the energy currency of the cell.
Reason (R): Energy trapped in ATP is utilized in various energy-requiring processes of the organisms.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.

 
Subtopic:  Respiratory Quotient |
 88%
From NCERT
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Given below are two statements: 
Assertion (A): Plants have stomata and lenticels that ensure the availability of O2.
Reason (R): Plants require CO2 for respiration and they give out O2.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.

 
Subtopic:  Introduction |
From NCERT
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Given below are two statements: 
Assertion (A): When a plant cell is photosynthesizing, there is no shortage of O2.
Reason (R): Ois released within the cell, during photosynthesis.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.

 
Subtopic:  Introduction |
 78%
From NCERT
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Given below are two statements: 
Assertion (A): Although the aerobic process of respiration takes place only in the presence of O2, the role of O2 is
limited to the terminal stage of the process.
Reason (R): Oxygen acts as the final hydrogen acceptor in ETS.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  ETS |
 81%
From NCERT
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Given below are two statements: 
Assertion (A): There can be a net gain of 38 ATP molecules during aerobic respiration of one molecule of glucose.
Reason (R): Fermentation accounts for a complete breakdown of glucose.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.

 
Subtopic:  THE RESPIRATORY BALANCE SHEET |
 81%
From NCERT
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Given below are two statements: 
Assertion (A): RQ of carbohydrates on its complete oxidation is equal to 1.
Reason (R): During the complete oxidation of carbohydrates, equal amounts of CO2 and O2 are evolved and consumed, respectively.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Respiratory Quotient |
 91%
From NCERT
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Given below are two statements: 
Assertion (A): Oxidation of one molecule of FADH2 gives rise to three molecules of ATP.
Reason (R): The continued oxidation of acetyl CoA via the TCA cycle does not require the continued
replenishment of oxaloacetic acid.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.

 
Subtopic:  ETS |
 85%
From NCERT
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