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Q. No.With respect to the steps of glycolysis at which utilization or synthesis of ATP or NADH takes place, Identify the incorrect match:
1.
Production of ATP
BPGA to 3-PGA
2.
Utilization of ATP
Fructose-6-phosphate to Fructose-1,6-biphosphate
3.
Production of NADH
PGAL to BPGA
4.
Utilization of NADH
3-PGA to 2-PGA
1.
Production of ATP
BPGA to 3-PGA
2.
Utilization of ATP
Fructose-6-phosphate to Fructose-1,6-biphosphate
3.
Production of NADH
PGAL to BPGA
4.
Utilization of NADH
3-PGA to 2-PGA
Subtopic: Glycolysis |
60%
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Identify the correct statements regarding the mitochondrial electron transport system.
| I: | Electrons from NADH in mitochondrial matrix are first transferred to [Fe-S] and then to FMN in complex I. |
| II: | Complex II is not a proton pump. |
| III: | Cytochrome c is located on the outer surface of the inner membrane. |
| IV: | Ubiquinone, located within the inner mitochondrial membrane, is oxidized with the transfer of electrons to cytochrome c via complex III. |
| 1. | Only II and III | 2. | Only II, III and IV |
| 3. | Only IV | 4. | Only I and III |
Subtopic: ETS |
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When oxygen is not available to a cell, NADH formed during glycolysis:
| 1. | does not undergo any change as there is no need for the cell to regenerate NAD+ |
| 2. | passes electrons to the electron transport system |
| 3. | passes hydrogen atoms to pyruvic acid |
| 4. | passes electrons and hydrogen atoms to acetyl coA |
Subtopic: Fermentation |
From NCERT
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Based on the figures given below, calculate the efficiency of the process of aerobic cellular respiration in a eukaryotic cell:
| I. | The total yield is 32 ATP molecules |
| II. | Complete oxidation of a mole of glucose releases 686 kcal or energy under standard conditions. |
| III. | Phosphorylation of ADP to form ATP stores at least 7.3 kcal per mole of ATP |
| 1. | 3.5 % | 2. | 32 % |
| 3. | 34 % | 4. | 51 % |
Subtopic: Aerobic Respiration |
56%
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What would be true when comparing the processes of anaerobic respiration and fermentation?
| I. | Both processes do not use oxygen. |
| II. | An electron transport chain is used in anaerobic respiration but not in fermentation. |
| 1. | Only I | 2. | Only II |
| 3. | Neither I nor II | 4. | Both I and II |
Subtopic: Fermentation |
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In aerobic cellular respiration:
| 1. | all oxygen in water given off comes from the water used in the process |
| 2. | all oxygen in water given off comes from the glucose dismantled in the process |
| 3. | all oxygen in water given off comes from the oxygen gas acquired from the air during breathing |
| 4. | oxygen in water given off comes from both the water used in the process and the glucose dismantled in the process |
Subtopic: Aerobic Respiration |
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In the electron transport system in the mitochondria, oxygen acts as a:
I: final acceptor of electrons
II: final acceptor of protons
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
Subtopic: ETS |
53%
From NCERT
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
In the light of the above statements choose the correct answer from the options given below:
| Assertion (A): | The maximum concentration of alcohol in beverages that are naturally fermented with yeast is about 13%. |
| Reason (R): | In alcohol fermentation, yeast converts pyruvic acid to ethanol and carbon dioxide. |
| 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: Fermentation |
75%
From NCERT
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Given below are two statements:
| Assertion (A): | The respiratory pathway is an amphibolic pathway. |
| 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. | (A) is False but (R) is True. |
Subtopic: Amphibolic Nature of Respiration |
93%
From NCERT
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The ratio of the volume of CO2 evolved to the volume of O2 consumed in respiration is called as the respiratory quotient [RQ]. Calculate RQ when albumin is used as a respiratory substrate[see the given equation]:
C77H112N2O22S + 77O2 → 63 CO2 + 38 H2O + SO2 + 9 CO(NH2)2
C77H112N2O22S + 77O2 → 63 CO2 + 38 H2O + SO2 + 9 CO(NH2)2
| 1. | 0.70 | 2. | 0.82 |
| 3. | 0.90 | 4. | 1.00 |
Subtopic: Respiratory Quotient |
70%
From NCERT
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