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Q. No.
CAM helps the plants in:
1.
secondary growth
2.
disease resistance
3.
reproduction
4.
conserving water
CAM helps the plants in:
| 1. | secondary growth | 2. | disease resistance |
| 3. | reproduction | 4. | conserving water |
Subtopic: Â CAM Pathway |
 81%
Level 1: 80%+
AIPMT - 2011
Hints
PGA as the first CO2 fixation product was discovered in photosynthesis of:
1. Bryophyte
2. Gymnosperm
3. Angiosperm
4. Algae
Subtopic: Â Dark Reaction: Biosynthetic Phase |
 65%
Level 2: 60%+
AIPMT - 2010
Hints
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: Â C4 Cycle (Hatch & Slack Pathway) |
 58%
Level 3: 35%-60%
AIPMT - 2010
Hints
Stroma in the chloroplasts of higher plants contains:
| 1. | light-independent reaction enzymes |
| 2. | light-dependent reaction enzymes |
| 3. | ribosomes |
| 4. | chlorophyll |
Subtopic: Â Chloroplast Structure |
 69%
Level 2: 60%+
AIPMT - 2009
Hints
Cyclic -photophosphorylation results in the formation of:
1. NADPH
2. ATP and NADPH
3. ATP, NADPH, and O2
4. ATP
Subtopic: Â Light Reaction: Photophosphorylation |
 78%
Level 2: 60%+
AIPMT - 2009
Hints
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: Â C4 Cycle (Hatch & Slack Pathway) |Â C4 Plants Examples |
 57%
Level 3: 35%-60%
AIPMT - 2008
Hints
Electrons from excited chlorophyll molecule of photosystem-ll are accepted first by:
1. cytochrome-b
2. cytochrome-f
3. quinone
4. ferredoxin
Subtopic: Â Photosystems |
 68%
Level 2: 60%+
AIPMT - 2008
Hints
In leaves of C4 plants, malic acid synthesis during CO2 fixation occurs in:
| 1. | epidermal cells | 2. | mesophyll cells |
| 3. | bundle sheath | 4. | guard cells |
Subtopic: Â C4 Cycle (Hatch & Slack Pathway) |Â C4 Plants Examples |
 80%
Level 1: 80%+
AIPMT - 2008
Hints
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: Â C4 Cycle (Hatch & Slack Pathway) |Â C4 Plants Examples |
 86%
Level 1: 80%+
AIPMT - 2007
Hints
The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is:
| 1. | cytochrome | 2. | iron-sulphur protein |
| 3. | ferredoxin | 4. | quinone |
Subtopic: Â Photosystems |
 75%
Level 2: 60%+
AIPMT - 2007
Hints
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