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Q. No.Given below are two statements:
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.
In the light of the above statements, choose the correct answer from the options given below :
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.
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
81%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
"Girdling Experiment" was performed by Plant Physiologists to identify the plant tissue through which:
1. osmosis is observed
2. water is transported
3. food is transported
4. for both water and food transportation
1. osmosis is observed
2. water is transported
3. food is transported
4. for both water and food transportation
Subtopic: Historical View: Experiments |
63%
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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What is the role of large bundle sheath cells found around the vascular bundles in C4 plants?
| 1. | To protect the vascular tissue from high light intensity. |
| 2. | To provide the site for photorespiratory pathway. |
| 3. | To increase the number of chloroplast for the operation of Calvin cycle. |
| 4. | To enable the plant to tolerate high temperature. |
Subtopic: Question on C4 Pathway |
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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The products of light reaction in photosynthesis are:
1. ATP, NADPH and \(\text{O}_2\)
2. ATP, NADPH, \(\text{O}_2\) and \(\text{H}_2 \text{O}\)
3. ATP, NADPH and \(\text{H}_2 \text{O}\)
4. ATP, NADPH and \(\text{CO}_2\)
Subtopic: Light Reaction: Electron Transport | Light Reactions |
77%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
The ratio of carbon dioxide fixation between C4 plants and C3 plants is :
| 1. | 2:1 | 2. | 2: 3 |
| 3. | 1:1 | 4. | 1:2 |
Subtopic: Dark Reaction : Calvin Cycle |
58%
NEET - 2022
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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Which of the following is important to continue Calvin cycle in an uninterrupted manner ?
1. Oxidation of CO2
2. Regeneration of the CO2 acceptor
3. Formation of hexose
4. Release of CO2
1. Oxidation of CO2
2. Regeneration of the CO2 acceptor
3. Formation of hexose
4. Release of CO2
Subtopic: Dark Reaction : Calvin Cycle |
87%
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Hints
In Kranz anatomy, the bundle sheath cells have :
1. Thick walls, no intercellular spaces and large number of chloroplasts
2. Thin walls, no intercellular spaces and several chloroplasts
3. Thick walls, many intercellular spaces and few chloroplasts
4. Thin walls, many intercellular spaced and no chloroplasts
1. Thick walls, no intercellular spaces and large number of chloroplasts
2. Thin walls, no intercellular spaces and several chloroplasts
3. Thick walls, many intercellular spaces and few chloroplasts
4. Thin walls, many intercellular spaced and no chloroplasts
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
88%
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Hints
C4 plants are photosynthetically more efficient than C3 plants because :
1. They have more chloroplasts
2. The CO2 compensation point is more
3. The CO2 efflux is not prevented
4. CO2 generated during photosynthesis is trapped and recycled through PEP-carboxylase
1. They have more chloroplasts
2. The CO2 compensation point is more
3. The CO2 efflux is not prevented
4. CO2 generated during photosynthesis is trapped and recycled through PEP-carboxylase
Subtopic: C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples |
63%
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Hints
Experimental O2 entry in C4 - plants would inhibit CO2 fixation reactions in :
1. Bundle sheath cells
2. Mesophyll cells
3. Both (1) and (2)
4. Neither (1) nor (2)
1. Bundle sheath cells
2. Mesophyll cells
3. Both (1) and (2)
4. Neither (1) nor (2)
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
51%
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In C4 cycle, oxaloacetic acid further forms :
1. Malic acid
2. Aspartic acid
3. Malic acid or aspartic acid
4. Succinic acid
1. Malic acid
2. Aspartic acid
3. Malic acid or aspartic acid
4. Succinic acid
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
81%
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