In photosynthesis, energy from light reaction to dark reaction is transferred in the form of:
1. ADP
2. ATP
3. RUDP
4. Chlorophyll

Subtopic:  Dark Reaction: Biosynthetic Phase |
 89%
From NCERT
AIPMT - 2002
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Which one of the following concerns photophosphorylation: 

1. ADP + AMP Lightenergy ATP

2. ADP + Inorganic PO4 Lightenergy ATP

3. ADP + Inorganic PO4  ATP

4. AMP + Inorganic PO4 Lightenergy ATP

Subtopic:  Light Reactions :3 |
 79%
From NCERT
AIPMT - 2003
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In the sugarcane plant, 14CO2 is fixed in malic acid because the enzyme that fixes CO2 is:

1. Ribulose biphosphate carboxylase

2. Phosphoenol pyruvic acid carboxylase

3. Ribulose phosphate kinase

4. Fructose phosphatase

Subtopic:  C4 Cycle (Hatch & Slack Pathway) |
 78%
From NCERT
AIPMT - 2003
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Which pair is wrong:
1.  C3 – Maize
2.  C4 – Kranz anatomy
3.  Calvin cycle - PGA
4.  Hatch and Slack cycle – O.A.A

Subtopic:  C4 Cycle (Hatch & Slack Pathway) |
 88%
From NCERT
AIPMT - 2001
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For the synthesis of one glucose molecule, the Calvin cycle operates for:

1. 2 times 2. 4 times
3. 6 times 4. 8 times
Subtopic:  Dark Reaction : Calvin Cycle |
 94%
From NCERT
AIPMT - 2000
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The first step for initiation of photosynthesis will be:

1. Photolysis of water
2. Excitement of chlorophyll molecule due to absorption of light
3. ATP formation
4. Glucose formation

Subtopic:  Light Reaction: Electron Transport |
 77%
From NCERT
AIPMT - 2000
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Photosynthetically active radiation (PAR) represents the following range of wavelengths:
1. 450-950 nm
2. 340-450 nm
3. 400-700 nm
4. 500-600 nm 

Subtopic:  Photosynthetic Pigments |
 88%
From NCERT
AIPMT - 2004
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Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on:

1. Membrane potential

2. Accumulation of K ions

3. Proton gradient

4. Accumulation of Na ions 

Subtopic:  Light Reaction: Photophosphorylation |
 95%
From NCERT
AIPMT - 2005
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During light reaction in photosynthesis, the following are formed

  1. ATP and sugar
  2. hydrogen, O2 and sugar
  3. ATP, hydrogen donor and O2
  4. ATP, hydrogen and O2 donor
Subtopic:  Light Reactions :1 |
 73%
From NCERT
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Dark reaction in photosynthesis is called so because

1. It can occur in dark also

2. It does not depend directly on light energy

3. It cannot occur during day light

4. It occurs more rapidly at night

Subtopic:  Photosystems |
 93%
From NCERT
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