The oxygen evolving complex is associated with:
1.PS I2.PS II
3.Both 1 and 24.Neither 1 nor 2

Subtopic:  Light Reaction: Electron Transport |
 81%
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Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis?
It involves: 
1. Reduction of NADP to NADPH2 on the stroma side of the membrane 
2. Breakdown of proton gradient 
3. Breakdown of electron gradient 
4. Movement of protons across the membrane to the stroma 
Subtopic:  Chemiosmotic hypothesis |
 73%
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

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) |
 80%
From NCERT
NEET - 2022
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"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
Subtopic:  Historical View: Experiments |
 63%
NEET - 2022
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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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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
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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
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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 COacceptor 
3. Formation of hexose 
4. Release of CO2
Subtopic:  Dark Reaction : Calvin Cycle |
 87%
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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
Subtopic:  C4 Cycle (Hatch & Slack Pathway) |
 88%
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Cplants are photosynthetically more efficient than Cplants because :
1. They have more chloroplasts
2. The COcompensation point is more
3. The COefflux is not prevented 
4. COgenerated during photosynthesis is trapped and recycled through PEP-carboxylase
 
Subtopic:  C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples |
 63%
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