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Q. No.In plants, the breakdown of food molecules within the cells to release energy for metabolic activities is termed:
| 1. | Photosynthesis | 2. | Respiration |
| 3. | Combustion | 4. | Fermentation |
Subtopic: Introduction |
93%
Level 1: 80%+
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Which of the following is the most common substrate for respiration in plants?
| 1. | Amino acids | 2. | Organic acids |
| 3. | Glucose | 4. | Lipids |
Subtopic: Respiratory Quotient |
93%
Level 1: 80%+
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Respiration is regarded as a __________ process.
| 1. | anabolic and exergonic |
| 2. | anabolic and endergonic |
| 3. | catabolic and endergonic |
| 4. | catabolic and exergonic |
Subtopic: Glycolysis | Aerobic Respiration |
64%
Level 2: 60%+
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The three sequential steps of aerobic respiration are:
| 1. | Glycolysis – Krebs cycle – Oxidative phosphorylation |
| 2. | Krebs cycle – Glycolysis – Oxidative phosphorylation |
| 3. | Glycolysis – Oxidative phosphorylation – Krebs cycle |
| 4. | Oxidative phosphorylation – Glycolysis – Krebs cycle |
Subtopic: Glycolysis | Aerobic Respiration | Kreb's Cycle | ETS |
79%
Level 2: 60%+
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Where in the cell does glycolysis occur?
| 1. | Cytoplasm |
| 2. | Mitochondrial matrix |
| 3. | Inner mitochondrial membrane |
| 4. | Chloroplast stroma |
Subtopic: Glycolysis |
93%
Level 1: 80%+
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How many molecules of ATP are directly produced in glycolysis per glucose molecule?
1. 2
2. 4
3. 6
4. 8
1. 2
2. 4
3. 6
4. 8
Subtopic: Glycolysis |
50%
Level 3: 35%-60%
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The link reaction between glycolysis and Krebs cycle involves:
| 1. | Conversion of pyruvate to lactic acid |
| 2. | Conversion of acetyl CoA to oxaloacetate |
| 3. | Conversion of glucose to pyruvate |
| 4. | Conversion of pyruvate to acetyl CoA |
Subtopic: Aerobic Respiration | Kreb's Cycle |
85%
Level 1: 80%+
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In which part of mitochondria does the Krebs cycle take place?
| 1. | Outer membrane | 2. | Inner membrane |
| 3. | Matrix | 4. | Intermembrane space |
Subtopic: Kreb's Cycle |
79%
Level 2: 60%+
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In the Krebs cycle, the two-carbon acetyl CoA first combines with:
| 1. | Oxaloacetate to form citrate |
| 2. | α-ketoglutarate to form malate |
| 3. | Succinyl CoA to form fumarate |
| 4. | Pyruvate to form ethanol |
Subtopic: Kreb's Cycle |
94%
Level 1: 80%+
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In aerobic respiration, how many NADH + H⁺ molecules are produced during complete oxidation of one glucose molecule?
1. 6
2. 8
3. 10
4. 12
1. 6
2. 8
3. 10
4. 12
Subtopic: Glycolysis | Aerobic Respiration |
Level 3: 35%-60%
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