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) |
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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 |
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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 |
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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) |
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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) |
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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) |
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Which metal ion is a constituent of chlorophyll ? 

1. Iron 

2. Copper

3. Magnesium 

4. Zinc 

 

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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 

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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

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Which light  range is most effective in photosynthesis ? 

1.  Blue 

2. Green 

3. Red 

4. Violet 

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