Q. No.| Assertion(A): | In aerobic respiration presence of O2 is necessary. |
| Reason(R): | O2 in aerobic respiration plays only one role i.e. terminal acceptor of the electron. |
| 1. | Both (A) & (R) are true and (R) is the correct explanation of (A) |
| 2. | Both (A) & (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is a true statement but (R) is false. |
| 4. | Both (A) and (R) are false statements. |
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| Assertion (A): | Glycolysis occurs in cytoplasm. |
| Reason (R): | Enzymes of glycolysis are found in cytoplasm. It is common in aerobic/anaerobic respiration. |
| 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. |
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
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| A: | Glycolysis is the first common step of both aerobic as well as anaerobic respiration. |
| R: | 1 molecule of hexose sugar is converted into molecules of pyruvic acid in the absence or presence of oxygen in glycolysis. |
| 1. | If both (A) & (R) are true and the (R) is the correct explanation of the (A), then mark (1). |
| 2. | If both (A) & (R) are true but the (R) is not the correct explanation of the (A), then mark (2). |
| 3. | If (A) is a true statement but the (R) is false, then mark (3). |
| 4. | If both (A) and (R) are false statements, then mark (4). |
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| Assertion (A): | Yeast in involved in alcoholic fermentation. |
| Reason (R): | Yeast poison themselves to death when concentration of alcohol reaches about 13%. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True, (R) is False. |
| 4. | Both (A) and (R) are False |
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In the figure given below the correct match is:
1. A-Ethanol, B-Lactic acid, C-Dihydroxyacetone phosphate
2. A-Lactic acid, B-Ethanol, C-Oxaloacetic acid
3. A-Lactic acid, B-Ethanol, C-3-Phosphoglyceric acid
4. A-Ethanol, B-Lactic acid, C-3-phosphoglyceric acid
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Match the following and select the correct option from these given below:
| Column I | Column II | ||
| (a) | NADH dehydrogenase | (i) | Complex - V |
| (b) | Cytochrome complex | (ii) | Complex - lll |
| (c) | ATP synthetase | (iii) | Complex - lV |
| (d) | Cytochrome c oxidase | (iv) | Complex - l |
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (ii) | (i) | (iii) |
| 2. | (iv) | (ii) | (iii) | (i) |
| 3. | (iv) | (iii) | (i) | (ii) |
| 4. | (iv) | (iii) | (ii) | (i) |
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Match the following columns.
|
Column I |
Column II |
|
A. Molecular oxygen B. Electron acceptor C. Pyruvate dehydrogenase D. Decarboxylation |
1. - ketoglutaric acid 2. Hydrogen acceptor 3. Cytochrome-c 4. Acetyl Co - A |
Codes
| Options: | A | B | C | D |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 3 | 4 | 2 | 1 |
| 3. | 2 | 1 | 3 | 4 |
| 4. | 4 | 3 | 1 | 2 |
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Consider the statements a, b, c and d with respect to fermentation by yeast and select the correct choice
a. Production of and ethanol
b. Complete oxidation of glucose
c. The reducing agent is NADH +
d. It is achieved under anaerobic condition
1. a & b are incorrect
2. b is incorrect
3. a & c is incorrect
4. all are incorrect
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Consider the following statements about fermentation
a. Yeast produces and ethanol by incomplete oxidation of glucose.
b. Some bacteria produce lactic acid from pyruvic acid.
c. In both lactic acid and alcohol fermentation, a lot of energy is released.
d. H2O is not released.
The correct statements are
1. Only a & d
2. a, b & d
3. b & d
4. a, c & d
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How many statements are correct with respect to ETS?
1. ETS is helpful in the restoration of NAD
2. is terminal e acceptor in electron transport system
3. Ubiquinone & FMN are hydrogen carriers and helpful in the movement of H from matrix to space.
4. Complex lV is also known as cytochrome C oxidase.
5. Movement of e in ETS is due to variable valency of metal ions present in carrier complexes.
1. 3
2. 4
3. 5
4. 2
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