Anoxygenic photosynthesis is characteristic of:

1. Rhodospirillum

2. Spirogyra

3. Chlamydomonas

4. Ulva

Subtopic:  Introduction | Historical View: Experiments |
 75%
AIPMT - 2014
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A process that makes an important difference between C3 and C4 plants is:

1. Transpiration

2. Glycolysis

3. Photosynthesis

4. Photorespiration

Subtopic:  Photorespiration |
 88%
From NCERT
AIPMT - 2012
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The correct sequence of cell organelles during photorespiration is:

1. chloroplast-Golgi bodies-mitochondria

2. chloroplast-rough endoplasmic reticulum-dictyosomes

3. chloroplast-mitochondria-peroxisome

4. chloroplast-vacuole-peroxisome

Subtopic:  Photorespiration |
 82%
AIPMT - 2012
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CAM helps the plants in:
1. secondary growth 2. disease resistance
3. reproduction 4. conserving water
Subtopic:  CAM Pathway |
 84%
AIPMT - 2011
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NEET 2023 - Target Batch - Aryan Raj Singh
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PGA as the first CO2 fixation product was discovered in photosynthesis of:
1. Bryophyte
2. Gymnosperm
3. Angiosperm
4. Algae

Subtopic:  Dark Reaction: Biosynthetic Phase |
 66%
AIPMT - 2010
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C4-plants are more efficient in photosynthesis than C3-plants due to:

1. higher leaf area
2. presence of larger number of chloroplasts in the leaf cells
3. presence of thin cuticle
4. lower rate of photorespiration

Subtopic:  C4 Cycle (Hatch & Slack Pathway) |
AIPMT - 2010
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NEET 2023 - Target Batch - Aryan Raj Singh
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Stroma in the chloroplasts of higher plants contains:

1. light-independent reaction enzymes

2. light-dependent reaction enzymes

3. ribosomes

4. chlorophyll

Subtopic:  Chloroplast Structure |
 70%
AIPMT - 2009
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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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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

The C4-plants are photosynthetically more efficient than C3-plants because:
1. the CO2 compensation point is more
2. CO2 generated during photorespiration is trapped and recycled through PEP carboxylase
3. The CO2 efflux is not prevented
4. They have more chloroplasts

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Subtopic:  C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples |
 57%
AIPMT - 2008
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Electrons from excited chlorophyll molecule of photosystem-ll are accepted first by:

1. cytochrome-b

2. cytochrome-f

3. quinone

4. ferredoxin

Subtopic:  Photosystems |
 68%
AIPMT - 2008
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