What is the role of NAD+ in cellular respiration?
1. It functions as an enzyme
2. It functions as an electron carrier
3. It is a nucleotide source for ATP synthesis
4. It is the final electron acceptor for anaerobic respiration

Subtopic:  Aerobic Respiration |
 59%
From NCERT
NEET - 2018
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Which of these statements is incorrect?
1. Enzymes of the TCA cycle are present in the mitochondrial matrix.
2. Glycolysis occurs in the cytosol.
3. Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms.
4. Oxidative phosphorylation takes place in the outer mitochondrial membrane.
Subtopic:  Oxidative Phosphorylation |
 77%
From NCERT
NEET - 2018
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The three boxes in this diagram represent the three major biosynthetic pathways in aerobic respiration. Arrows represent net reactants or products. 
 308753
Arrows numbered 4, 8, and 12 can all be:

1. ATP 2. A2O
3. FAD+ or FADH2 4. NADH
Subtopic:  Aerobic Respiration |
 79%
AIPMT - 2013
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The respiratory quotient during cellular respiration would depend on the

1. Nature of enzymes involved

2. Nature of the substrate

3. Amount of carbon dioxide released

4. Amount of oxygen utilized

Subtopic:  Respiratory Quotient |
 75%
From NCERT
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Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by:

1. Phosphofructokinase

2. Aldolase

3. Hexokinase

4. Enolase

Subtopic:  Glycolysis |
 90%
From NCERT
NEET - 2019
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Respiratory Quotient (RQ) value of tripalmitin is:

1.0.092.0.9
3.0.74.0.007

Subtopic:  Respiratory Quotient |
 82%
From NCERT
NEET - 2019
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Which of the following statements regarding mitochondria is incorrect?

1. Mitochondrial matrix contains single circular DNA molecule and ribosomes.
2. Outer membrane is permeable to monomers of carbohydrates, fats, and proteins.
3. Enzymes of electron transport are embedded in the outer membrane.
4. Inner membrane is convoluted with infoldings.
Subtopic:  ETS |
 73%
From NCERT
NEET - 2019
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Which of the following biomolecules is common to respiration-mediated breakdown of fats, carbohydrates and proteins?

1. Glucose-6-phosphate
2. Fructose 1, 6-bisphosphate
3. Pyruvic acid
4. Acetyl Co-A
Subtopic:  THE RESPIRATORY BALANCE SHEET |
 79%
From NCERT
NEET - 2016
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In the given diagrammatic representation of ATP synthesis in mitochondria, A, B and C are respectively:
  
1. 2 H+F0 and F1
2. 2 H+F1 and F0
3. 4 H+F0 and F1
4. 4 H+F1 and F0

Subtopic:  Oxidative Phosphorylation |
 81%
From NCERT
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Match each item in Column I with one item in Column II regarding electron
transport chain located in the inner mitochondrial membrane and chose your answer from the codes given below:
Column I                          Column II
I. Complex I                     1. NADH dehydrogenase
II. Complex II                   2. FADH2
III. Complex III                 3. Cyt bc1 complex
IV. Complex IV                  4. ATP synthase
                                        5. Cytochrome c oxidase Codes:
      I   II   III   IV
1.   1   2    3    4
2.   1   2    3    5 
3.   2   1    3   4
4.   2   1    3   5

Subtopic:  ETS |
 77%
From NCERT
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