PEP is primary CO2 acceptor in

1. C4 plants
2. C3 plants
3. C2 plants
4. both C3 and C4 plants

Subtopic:  C4 Cycle (Hatch & Slack Pathway) |
 92%
Level 1: 80%+
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Splitting of water is associated with

1. photosystem I
2. lumen of thylakoid
3. both photosystems I and II
4. inner side of thylakoid membrane

Subtopic:  Chemiosmotic hypothesis |
 53%
Level 3: 35%-60%
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The correct sequence of flow of electrons in the light reaction is:

1. PS II, plastoquinone, cytochromes, PS I, ferredoxin
2. PS I, plastoquinone, cytochromes, PS II, ferredoxin
3. PS I, ferredoxin, PS II
4. PS I, plastoquinone, cytochromes, PSII, ferredoxin

Subtopic:  Light Reactions :1 | Light Reactions :2 | Light Reactions :3 |
 92%
Level 1: 80%+
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The enzyme that is not found in a C3 plant is

1.  RuBP carboxylase

2.  PEP carboxylase

3.  NADP reductase

4.  ATP synthase

Subtopic:  C4 Cycle (Hatch & Slack Pathway) |
 87%
Level 1: 80%+
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The reaction that is responsible for the primary fixation of CO2 is catalysed by

1. RUBP carboxylase
2. PEP carboxylase
3. RuBP carboxylase and PEP carboxylase
4. PGA synthase

Subtopic:  Dark Reaction : Calvin Cycle | C4 Cycle (Hatch & Slack Pathway) |
 63%
Level 2: 60%+
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When CO2 is added to PEP, the first stable product synthesized is

1. pyruvate

2. glyceraldehyde-3-phosphate

3. phosphoglycerate

4. oxaloacetate

Subtopic:  C4 Cycle (Hatch & Slack Pathway) |
 84%
Level 1: 80%+
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Which pigment acts directly to convert light energy to chemical energy ? 

1. Chlorophyll a 

2. Chlorophyll b 

3. Xanthophyll 

4. Carotenoid 

Subtopic:  Pigments |
 96%
Level 1: 80%+
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Which range of wavelength (in nm) is called photosynthetically active radiation (PAR) ? 

1.  100 - 390

2.  390-430

3. 400 - 700 

4. 760- 100,00

Subtopic:  Photosynthetic Pigments |
 95%
Level 1: 80%+
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Which light  range is most effective in photosynthesis ? 

1.  Blue 

2. Green 

3. Red 

4. Violet 

Subtopic:  Photosynthetic Pigments |
 61%
Level 2: 60%+
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Chemosynthetic bacteria obtain energy from 

1. Sun 

2. Infra red rays 

3. Organic substances 

4. Inorganic chemicals

Subtopic:  Photosynthetic Pigments |
 68%
Level 2: 60%+
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