Which of the following organisms is employed to confirm that the first CO2 fixation product in C3 cycle is three-carbon organic acid?
1. Algae
2. Cyanobacteria
3. Dinoflagellate
4. Bryophyte

Subtopic:   WHERE ARE THE ATP AND NADPH USED |
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Which of the following types of sugars includes RuBP?
1. Acidic sugar
2. Alcoholic sugar
3. Aldehydic sugar
4. Ketonic sugar
Subtopic:   WHERE ARE THE ATP AND NADPH USED |
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How many ATP and NADHP will be required to form a heptose sugar through C3 cycle?
1. 18 ATP & 12 NADPH
2. 21 ATP & 14 NADPH
3. 12 ATP & 18 NADPH
4. 24 ATP & 16 NADPH
Subtopic:  Dark Reaction : Calvin Cycle |
 52%
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Which of the following processes is most crucial for Calvin cycle?
1. Regeneration
2. Reduction
3. Carboxylation
4. Elimination
Subtopic:  Dark Reaction : Calvin Cycle |
 82%
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All of the following properties are exhibited by Sorghum, except
1. Adaptability to dry tropical regions
2. Greater productivity of biomass
3. Presence of photorespiration
4. Response towards high light intensities.
Subtopic:  C4 Plants Examples |
 90%
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Mesophylls cells of rice differs from that of maize, as the latter exhibits the presence of:
1. Glucose
2. RuBisCO
3. PEPcase
4. RuBP
Subtopic:  Dark Reaction : Calvin Cycle | C4 Cycle (Hatch & Slack Pathway) |
 76%
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if CO2 : O2 concentration is equal, then the RuBisCO binds:
1. Randomly to either CO2 or O2
2. To CO2
3. To O2
4. Neither to CO2 nor O2
Subtopic:  Photorespiration |
 85%
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How many 3 PGA molecules will be formed from the 20 RuBP molecules, if CO2 : O2 is 1:10?
1. 40
2. 20
3. 10
4. 15
Subtopic:  Dark Reaction : Calvin Cycle |
 58%
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Which of the following will become a limiting factor for photosynthesis under cold conditions?
1. Water
2. CO2 concentration
3. Chlorophyll
4. Temperature
Subtopic:  Factors Affecting Photosynthesis |
 84%
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In which of the following cases, light will become a limiting factor?
1. In case of high light intensity
2. In case of low temperature
3. In case of plants in dense forests
4. In case of water scarcity
Subtopic:  Factors Affecting Photosynthesis |
 82%
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