Which is wrong for cytochrome P–450?

1.  It contains Fe
2.  It is concerned with oxidation
3.  It is a pigment
4.  It is a coloured cell

Subtopic:  Photosynthetic Pigments |
AIPMT - 1998
Please attempt this question first.
Hints

What change occurs during conversion of proto chlorophyll to chlorophyll :

1.  Addition of 2H in one pyrrole ring
2.  Loss of 2H
3.  Addition of Mg
4.  Loss of Mg

Subtopic:  Photosynthetic Pigments |
AIPMT - 1998
Please attempt this question first.
Hints

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
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

For the assimilation of one CO2 molecule in C3 plants, the energy required in the form of ATP and NADPHis:

1. 2 ATP & 2 NADPH2

2. 5 ATP & 3 NADPH2

3. 3 ATP & 2 NADPH2

4. 18 ATP & 12 NADPH2

Subtopic:  Dark Reaction : Calvin Cycle |
 74%
From NCERT
AIPMT - 2000
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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 |
 88%
From NCERT
AIPMT - 2000
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which pigment system is inactivated in the red drop:
1.  PS-I and P.S-II
2.  PS – I
3.  PS – II
4.  None

Subtopic:  Historical View: Experiments |
AIPMT - 2001
Please attempt this question first.
Hints

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
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh