Q. No.| 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. |
In the light of the above statements, choose the correct answer from the option given below:
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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| Statement I: | The primary \(CO_2\) acceptor in \(C_4\) plants is phosphoenolpyruvate and is found in the mesophyll cells. |
| Statement II: | Mesophyll cells in \(C_4\) plants lack RuBisCO enzyme. |
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe first stable product of CO2 fixation in sorghum is:
1. Succinic acid
2. Phosphoglyceric acid
3. Pyruvic acid
4. Oxaloacetic acid
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements is incorrect?
| 1. | RuBisCO is a bifunctional enzyme |
| 2. | In C4 plants, the site of RuBisCO activity is mesophyll cell |
| 3. | The substrate molecule for RuBisCO activity is a 5-carbon compound |
| 4. | RuBisCO action requires ATP and NADPH |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn Hatch and Slack pathway, the primary CO2 acceptor is -
1. Oxaloacetic acid
2. Phosphoglyceric acid
3. Phosphoenol pyruvate
4. Rubisco
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPhosphoenol pyruvate (PEP) is the primary CO2 acceptor in:
1. C4 plants
2. C2 plants
3. C3 and C4 plants
4. C3 plants
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | C4 | 2. | CAM |
| 3. | Nitrogen –fixer | 4. | C3 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn Kranz anatomy, the bundle sheath cells have:
| 1. | thick walls, many intercellular spaces and few chloroplasts |
| 2. | thin walls, many intercellular spaces and no chloroplasts |
| 3. | thick walls, no intercellular spaces and a large number of chloroplasts |
| 4. | thin walls, no intercellular spaces and several chloroplasts |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyStudy the pathway given below:
In which of the following options, correct words for all the three blanks A, B and C are indicated?
| A | B | C | |
| 1. | Fixation | Transamination | Regeneration |
| 2. | Fixation | Decarboxylation | Regeneration |
| 3. | Carboxylation | Decarboxylation | Reduction |
| 4. | Decarboxylation | Reduction | Regeneration |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
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