Which statement is wrong for Krebs' cycle?

1. There are three points in the cycle where NAD+ is reduced to NADH + H+
2. There is one point in the cycle where FAD+ is reduced to FADH2
3. During conversion of succinyl Co-A to succinic acid, a molecule of GTP is synthesised
4. The cycle starts with condensation of acetyl group (acetyl Co-A) with pyruvic acid to yield citric acid

Subtopic:  Kreb's Cycle |
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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:  Kreb's Cycle |
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Oxidative phosphorylation is

(1) formation of ATP by transfer of phosphate group from a substrate to ADP

(2) oxidation of phosphate group in ATP

(c) addition of phosphate group to ATP

(4) formation of ATP by energy release from electrons removed during substrate oxidation. 

Subtopic:  Oxidative Phosphorylation |
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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:  Amphibolic Nature of Respiration |
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What is the role of NAD+ in cellular respiration?
1. It functions as an enzymes
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:  ETS:1 | ETS |
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Which of these statements is incorrect?

1. Enzymes of TCA cycle are present in mitochondrial matrix.
2. Glycolysis occurs in cytosol.
3. Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms.
4. Oxidative phosphorylation takes place in outer mitochondrial membrane.

Subtopic:  Oxidative Phosphorylation |
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Oxidative phosphorylation is

1.  formation of ATP by transfer of phosphate group from a substrate to ADP

2.  oxidation of phosphate group in ATP

3.  addition of phosphate group to ATP

4.  formation of ATP by energy released from electrons removed during substrate oxidation

Subtopic:  Oxidative Phosphorylation |
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Which statement is wrong for Krebs' cycle?

1. There is one point in the cycle where FAD+ is reduced to FADH.

2. During conversion of succinyl CoA  to succinic acid, a molecule of GTP is synthesized.

3. The cycle starts with condensation of acetyl group (accetyl CoA) with pyruvic acid to yield citric acid.

4. There are three points in the cycle where NAD+ is reduced to NADH + H+.

Subtopic:  Kreb's Cycle |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
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NEET MCQ Books for 11th Physics, Chemistry & Biology