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Q. No.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
| 1. | C4 | 2. | CAM |
| 3. | Nitrogen –fixer | 4. | C3 |
Subtopic: C4 Cycle (Hatch & Slack Pathway) |
88%
From NCERT
NEET - 2016
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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 |
81%
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 |
83%
AIPMT - 2011
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NEET 2025 - Target Batch
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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) |
58%
AIPMT - 2010
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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 |
69%
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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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 |
Subtopic: C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples |
56%
AIPMT - 2008
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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 |
81%
From NCERT
AIPMT - 2008
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Water-soluble pigments found in plant cell vacuoles are:
| 1. | chlorophylls | 2. | carotenoids |
| 3. | anthocyanins | 4. | xanthophylls |
Subtopic: Pigments |
59%
NEET - 2016
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Oxygen is not produced during photosynthesis by:
| 1. | Green sulphur bacteria | 2. | Nostoc |
| 3. | Cycas | 4. | Chara |
Subtopic: Historical View: Experiments |
84%
From NCERT
NEET - 2018
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