What is the number of carbon atoms in a molecule of ribulose biphosphate?
1. 3 2. 4
3. 5 4. 2
Subtopic:   WHERE ARE THE ATP AND NADPH USED |
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The first stable product of C₃ cycle is ______, whereas that of C₄ cycle is ______.
1. Acetyl-CoA; Citrate
2. OAA; PGA
3. RuBP; PEP
4. PGA; OAA
Subtopic:   WHERE ARE THE ATP AND NADPH USED |
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Consider the given two statements:
Assertion (A): Immediately after light becomes unavailable, the biosynthetic process of photosynthesis continues for some time, and then stops.
Reason (R): Biosynthetic process of photosynthesis can occur only in absence of light.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A)
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. (A) is False but (R) is True.
 
Subtopic:   WHERE ARE THE ATP AND NADPH USED |
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In the Calvin cycle, the first stable product formed after COâ‚‚ fixation is 3-phosphoglyceric acid (PGA). How many carbon atoms does one molecule of PGA contain?
1. One
2. Two
3. Three
4. Six
Subtopic:   WHERE ARE THE ATP AND NADPH USED |
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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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Energy is transferred from the light reaction step to the dark reaction step by

1. chlorophyll

2. ADP

3. ATP

4. RuBP

Subtopic:  Introduction | Historical View: Experiments | Chloroplast Structure | Photosynthetic Pigments | Redtrop Experiment | Emerson's Enhancement Experiment | Photosystems | Light Reaction: Electron Transport | Light Reaction: Photophosphorylation | Dark Reaction: Biosynthetic Phase |
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