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Q. No.What is the number of ATP molecules produced by substrate-level phosphorylation from the complete breakdown of a single molecule of glucose in the presence of oxygen?
1. 2
2. 3
3. 4
4. 6
Subtopic: Aerobic Respiration | Kreb's Cycle |
From NCERT
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During glycolysis, an ATP molecule is synthesised during the conversion of:
I: BPGA to 3-phosphoglyceric acid (PGA)
II: PEP to pyruvic acid
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
I: BPGA to 3-phosphoglyceric acid (PGA)
II: PEP to pyruvic acid
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Glycolysis |
80%
From NCERT
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Consider the two statements:
| Assertion (A): | It is better to consider the respiratory pathway as an amphibolic pathway rather than as a catabolic one. |
| Reason (R): | The respiratory pathway is involved in both anabolism and catabolism. |
| 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: Aerobic Respiration | Amphibolic Nature of Respiration |
91%
From NCERT
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Glycerol enters the respiratory pathway after being converted to:
1. PGAL
2. PEP
3. 1, 3 – BPG
4. 2 – PG
Subtopic: Amphibolic Nature of Respiration |
83%
From NCERT
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Consider the given two statements:
| Statement I: | In aerobic cellular respiration, the complete oxidation of pyruvate takes place in the cytoplasm. |
| Statement II: | The apparatus for passing electrons to molecular oxygen with simultaneous synthesis of ATP is located in the inter-membrane space |
| 1. | Statement I is incorrect; Statement II is incorrect |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is correct; Statement II is correct |
Subtopic: Glycolysis | Aerobic Respiration |
From NCERT
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NADH + H+ is reoxidised to NAD+ in:
I: Ethanol fermentation
II: Lactate fermentation
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
I: Ethanol fermentation
II: Lactate fermentation
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Fermentation |
87%
From NCERT
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Consider the given two statements:
| Assertion (A): | Carbon dioxide is not produced in glycolysis. |
| Reason (R): | Glycolysis is a metabolic pathway that does not require oxygen. |
| 1. | (A) is True but (R) is False |
| 2. | Both (A) and (R) are True and (R) correctly explains (A) |
| 3. | Both (A) and (R) are True and but (R) does not correctly explain (R) |
| 4. | (A) is False but (R) is True |
Subtopic: Glycolysis |
61%
From NCERT
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The glycolytic pathway has an investment of 2 ATP molecules. At which of the following steps is the debt paid off?
| 1. | Conversion of Glucose into Glucose-6-phospahte |
| 2. | Conversion of Fructose-6-phosphate into Fructose 1,6-biphospahte |
| 3. | Conversion of 1,3 biphoshoglyceric acid into 3-phosphoglyceric acid |
| 4. | Conversion of Phosphoenol pyruvate into Pyruvic acid |
Subtopic: Glycolysis |
56%
From NCERT
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Consider the two given statements:
| Assertion (A): | In aerobic cellular respiration the presence of oxygen is vital. |
| Reason (R): | Oxygen acts as the final hydrogen acceptor. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | (A) is True but (R) is False |
| 3. | (A) is False but (R) is True |
| 4. | Both (A) and (R) are True but (R) does not correctly explain (A) |
Subtopic: ETS |
78%
From NCERT
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Conversion of sucrose into glucose and fructose is catalyzed by:
1. Phosphofructokinase
2. Aldolase
3. Hexokinase
4. Invertase
1. Phosphofructokinase
2. Aldolase
3. Hexokinase
4. Invertase
Subtopic: Glycolysis |
83%
From NCERT
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