List-I | List-II | ||
A | C4 Pathway | I. | \(2\text{H}_2\text{O}\rightarrow4\text{H}^++\text{O}_2=4\text{e}^-\) |
B. | Light reaction | II. | Ribulose 1,5-bisphosphate |
C. | Photorespiration | III. | -carbon molecule phosphoenol |
D. | Calvin cycle | IV. | Phosphoglycolate |
1. | A-II, B-I, C-IV, D-III |
2. | A-IV, B-II, C-I, D-III |
3. | A-III, B-I, C-IV, D-II |
4. | A-III, B-IV, C-II, D-I |
Which one of the following is wrong in relation to photorespiration:
1. | It occurs in chloroplasts |
2. | It occurs in the daytime only |
3. | It is a characteristic of C4 plants |
4. | It is a characteristic of C3 plants |
Statement I: | In \(\text{C}_3\) plants, some \( \text{O}_2\) binds to \(\text{RuBisCO},\) hence \(\text{CO}_2\) fixation is decreased. |
Statement II: | In \( \text{C}_4\) plants, mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration. |
1. | Both Statement I and Statement II are False |
2. | Statement I is True but Statement II is False |
3. | Statement I is False but Statement II is True |
4. | Both Statement I and Statement II are True |
The oxygenation activity of RuBisCo enzyme in photorespiration leads to the formation of:
1. | 1 molecule of the 3-C compound |
2. | 1 molecule of the 6-C compound |
3. | 1 molecule of a 4-C compound and 1 molecule of the 2-C compound |
4. | 2 molecules of the 3-C compound |
The process which makes a major difference between C3 and C4 plants is:
1. | glycolysis | 2. | Calvin cycle |
3. | photorespiration | 4. | respiration |
A process that makes an important difference between C3 and C4 plants is:
1. Transpiration
2. Glycolysis
3. Photosynthesis
4. Photorespiration
Statement I: | RuBisCO is the most abundant enzyme in the world. |
Statement II: | Photorespiration does not occur in C4 plants. |
1. | Statement I is correct but Statement II is incorrect |
2. | Statement I is incorrect but Statement II is correct |
3. | Both Statement I and Statement II are correct |
4. | Both Statement I and Statement II are incorrect |