In Hatch and Slack pathway, the primary CO2 acceptor is -

1. Oxaloacetic acid

2. Phosphoglyceric acid

3. Phosphoenol pyruvate

4. Rubisco

Subtopic:  C4 Cycle (Hatch & Slack Pathway) |
 71%
From NCERT
NEET - 2019
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One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of:

1. Violet and green light

2. Indigo and green light

3. Orange and yellow light

4. Blue and red light

Subtopic:  Historical View: Experiments |
 90%
From NCERT
NEET - 2019
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The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that Adenosine Triphosphate (ATP) is formed because:
1. high energy bonds are formed in mitochondrial proteins
2. ADP is pumped out of the matrix into the inter-membrane space
3. a proton gradient forms across the inner membrane
4. there is a change in the permeability of the inner mitochondrial membrane toward Adenosine Diphosphate (ADP)
Subtopic:  Chemiosmotic hypothesis |
 80%
From NCERT
AIPMT - 2008
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In the leaves of C4 plants, malic acid formation during CO2 fixation occurs in the cells of:
1. mesophyll
2. bundle sheath
3. phloem
4. epidermis

Subtopic:  C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples |
 86%
From NCERT
AIPMT - 2007
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In leaves of Cplants, malic acid synthesis during COfixation occurs in:
1. epidermal cells
2. mesophyll cells
3. bundle sheath
4. guard cells
Subtopic:  C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples |
 80%
From NCERT
AIPMT - 2008
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Cyclic -photophosphorylation results in the formation of:
1. NADPH
2. ATP and NADPH
3. ATP, NADPH, and O2
4. ATP

Subtopic:  Light Reaction: Photophosphorylation |
 78%
From NCERT
AIPMT - 2009
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In photosynthesis, the light-independent reactions take place at?

1. Thylakoid lumen

2. photosystem I

3. photosystem II

4. Stromal matrix

Subtopic:  Dark Reaction: Biosynthetic Phase |
 70%
From NCERT
NEET - 2015
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In chloroplast, the highest number of protons are found in?
1. lumen of thylakoids
2. intermembrane space
3. antennae complex
4. stroma
Subtopic:  Chemiosmotic hypothesis |
 89%
From NCERT
NEET - 2016
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Emerson’s enhancement effect and red drop have been instrumental in the discovery of?

1. two photosystems operating simultaneously
2. photophosphorylation and cyclic electron transport
3. oxidative photophosphorylation
4. photophosphorylation and non-cyclic electron transport
Subtopic:  Redtrop Experiment | Emerson's Enhancement Experiment |
 64%
NEET - 2016
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A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?
1. C4 2. CAM
3. Nitrogen –fixer 4. C3
Subtopic:  C4 Cycle (Hatch & Slack Pathway) |
 87%
From NCERT
NEET - 2016
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