During prolonged fasting, in what sequence are the following organic compounds used up by the body ?

1. First carbohydrates, next proteins and lastly lipids

2. First proteins, next lipids and lastly carbohydrates

3. First carbohydrates, next fats and lastly proteins

4. First fats, next carbohydrates and lastly proteins

Subtopic:  Respiratory Quotient |
 58%
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NEET 2023 - Target Batch - Aryan Raj Singh
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At which step, glycolysis reaches the break-even point: 2
molecules of ATP consumed, and 2 new molecules synthesized?

1. Splitting of fructose-6-phosphate into two trioses
2. Conversion of 1,3 bi-phosphoglycerate to 3 phosphoglycerate
3. Conversion of GADP to 1,3 biphosphoglycerate
4. Conversion of DHAP to GADP

Subtopic:  Glycolysis |
 57%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Under which condition would you expect the mitochondrial proton gradient to be highest and therefore ATP synthesis to proceed?
1. pyruvate (present)-oxygen (present)-ATP levels (high)
2. pyruvate (present)-oxygen (present)-ATP levels (low)
3. pyruvate (present)-oxygen (absent)-ATP levels (high)
4. pyruvate (absent)-oxygen (present)-ATP levels (low)

Subtopic:  Oxidative Phosphorylation |
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NEET 2023 - Target Batch - Aryan Raj Singh
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Plants can get along without respiratory organs because of the following except:

1. Each plant part takes care of its own gas exchange needs
2. Plants do not present great demands for gas exchange.
3. Gas diffusion in plants occurs easily over long distances in plants.
4. Each living cell in a plant is located quite close to the surface of the plant.
Subtopic:  Introduction |
 67%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Sucrose is converted into glucose and fructose by the enzyme:

1. Maltase
2. Zymase
3. Isomerase
4. Invertase

Subtopic:  Glycolysis |
 83%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

The co-factor required for the activity of pyruvate dehydrogenase is:
1. Zinc
2. Magnesium
3. Manganese
4. Copper

Subtopic:  Aerobic Respiration |
 72%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

In the mitochondrial electron transport system, the term Complex III refers to:
1. NADH dehydrogenase
2. Cytochrome c
3. FADH2
4. Cytochrome bc1 complex

Subtopic:  Oxidative Phosphorylation |
 71%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

For each ATP produced, how many H passes through F0 from the intermembrane space to the matrix down the electrochemical proton gradient?

1. 1
2. 2
3. 3
4. 4

Subtopic:  Oxidative Phosphorylation |
 74%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

If fatty acids were to be respired, they would first be degraded to:
1. Glucose-6 phosphate
2. Pyruvate
3. Acetyl-CoA
4. Alpha ketoglutarate

Subtopic:  Aerobic Respiration |
 74%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

In the absence of oxygen, the primary purpose of fermentation is to:
1. produce amino acids for protein synthesis
2. generate a proton gradient for ATP synthesis
3. oxidize glucose to generate reduce electron carriers
4. regenerate NAD+ from NADH allowing glycolysis to continue

Subtopic:  Fermentation |
 70%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh