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). |
Statement I: | In fermentation, there is a net gain of 12 molecules of ATP for each molecule of glucose degraded to pyruvic acid whereas only 2 molecules of ATP are generated under aerobic conditions. |
Statement II: | Fermentation accounts for only a partial breakdown of glucose whereas in aerobic respiration it is completely degraded to CO2 and H2O. |
Statement I: | The first five reactions of glycolytic pathway convert a molecule of glucose into 2 molecules of glyceraldehyde-3-phosphate. |
Statement II: | The final product of glycolysis is pyruvate in aerobic settings and lactate in anaerobic conditions. |
Statement I: | In glycolysis, the conversion of 1, 3-bisphosphoglyceric acid to 3-phosphoglyceric acid and conversion of phosphoenolpyruvate to pyruvic acid are energy-yielding processes. |
Statement II: | In glycolysis, the conversion of fructose-6-phosphate to fructose-1, 6-bisphosphate and conversion of PGAL to 1, 3-bisphosphoglycerate are energy-yielding processes. |
1. | Both statement I and statement II are true |
2. | Both statement I and statement II are false |
3. | statement I is correct but statement II is false |
4. | statement I is incorrect but statement II is true |
Statement I: | Respiratory Quotient (RQ) is the ratio of the volume of CO2 evolved to the volume of O2 consumed |
Statement II: | Respiratory Quotient (RQ) is the ratio of the volume of O2 evolved to the volume of CO2 consumed |
1. | Both Statement I and Statement II are correct |
2. | Both Statement I and Statement II are incorrect |
3. | Statement I is correct but Statement II is incorrect |
4. | Statement I is incorrect but Statement II is correct |
Statement I: | The end products of Electron Transport System (ETS) are ATP and H2O |
Statement II: | ETS begins with a reduction of NADH+H+ and ends with oxidation of O2 |
1. | Both Statement I and Statement II are correct |
2. | Both Statement I and Statement II are incorrect |
3. | Statement I is correct but Statement II is incorrect |
4. | Statement I is incorrect but Statement II is correct |
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. |
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. |
Assertion (A): | In green plants all other organs, tissues and cells that are non-green, need food for oxidation. |
Reason (R): | They cannot photosynthesize their food. |
1. | Both (A) and (R) are True and (R) correctly explains (A) |
2. | Both (A) and (R) are True but (R) does not correctly explains (A) |
3. | (A) is True but (R) is False |
4. | Both (A) and (R) are False |
Assertion (A): | Energy released by oxidation in respiration is not used directly but is used to synthesize ATP. |
Reason (R): | ATP can be broken down whenever energy is required by cells. |
1. | Both (A) and (R) are True and (R) correctly explains (A) |
2. | Both (A) and (R) are True but (R) does not correctly explains (A) |
3. | (A) is True but (R) is False |
4. | Both (A) and (R) are False |