The first stable product of CO2 fixation in sorghum is:

1. Succinic acid

2. Phosphoglyceric acid

3. Pyruvic acid

4. Oxaloacetic acid

Subtopic:  C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples |
 78%
From NCERT
NEET - 2021
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Which of the following statements is incorrect?

1. Grana lamellae have both PSI and PS II.
2. Cyclic photophosphorylation involves both PS I and PS II.
3. Both ATP and NADPH+H+ are non-cyclic synthesized during photophosphorylation.
4. Stroma lamellae have PS I only and lack NADP reductase.

Subtopic:  Light Reaction: Photophosphorylation |
 79%
From NCERT
NEET - 2021
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Which pair is wrong:
1.  C3 – Maize
2.  C4 – Kranz anatomy
3.  Calvin cycle - PGA
4.  Hatch and Slake cycle – O.A.A

Subtopic:  C4 Cycle (Hatch & Slack Pathway) |
 88%
From NCERT
AIPMT - 2001
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Which one of the following is wrong in relation to photorespiration:
1. It occurs in chloroplasts
2. It occurs in the daytime only
3. It is a characteristic of C4 plants
4. It is a characteristic of C3 plants

Subtopic:  Photorespiration |
 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 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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What happens in light reaction (Photo chemical reaction):

1. Formation of ATP and NADPH2

2. Formation of ATP

3. Formation of sugar

4. Breakdown of sugar

Subtopic:  Light Reaction: Electron Transport |
 89%
From NCERT
AIPMT - 2000
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Which of the following absorbs light energy for photosynthesis:
1. Chlorophyll
2. Water molecule
3. O2
4. RUBP

Subtopic:  Photosynthetic Pigments |
 90%
From NCERT
AIPMT - 2002
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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 is the first CO2 acceptor enzyme in C4 plants:
1. RuDP Carboxylase
2. Phosphoric acid
3. RUBISCO
4. PEP-Carboxylase

Subtopic:  C4 Cycle (Hatch & Slack Pathway) |
 90%
From NCERT
AIPMT - 2000
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