The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that Adenosine Triphosphate (ATP) is formed because:
1. high energy bonds are formed in mitochondrial proteins
2. ADP is pumped out of the matrix into the inter-membrane space
3. a proton gradient forms across the inner membrane
4. there is a change in the permeability of the inner mitochondrial membrane toward Adenosine Diphosphate (ADP)

Subtopic:  Chemiosmotic hypothesis |
 80%
From NCERT
AIPMT - 2008
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

In leaves of Cplants, malic acid synthesis during COfixation occurs in:
1. epidermal cells
2. mesophyll cells
3. bundle sheath
4. guard cells
Subtopic:  C4 Cycle (Hatch & Slack Pathway) | C4 Plants Examples |
 80%
From NCERT
AIPMT - 2008
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

In the given graph what does A, B represent?

         

1. A - Absorption spectrum; B - Action spectrum (Chl. a).
2. A - Action spectrum; B - Absorption spectrum (carotenoids).
3. A - Absorption spectrum; B - Action spectrum (Ch. b).
4. A - Action spectrum; B - Absorption spectrum (Ch.a).
Subtopic:  Photosynthetic Pigments |
 64%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

Examine the figure given below and select the wrong option

   

1. A - Present in only grana lamellae.
2. B - involves downhill movement of electrons in terms of oxidation-reduction potential.
3. C - Absorbs 700 nm light.
4. The electrons return back to the reaction center.
Subtopic:  Light Reactions |
 69%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

The process which makes a major difference between C3 and C4 plants is:

1. glycolysis 2. Calvin cycle
3. photorespiration 4. respiration
Subtopic:  Photorespiration |
 91%
From NCERT
NEET - 2016
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

In plant cells, synthesis of ATP by the chemiosmotic
mechanism occurs during
1. Photosynthesis only.
2. Respiration only.
3. Both photosynthesis and respiration. 
4. Photorespiration only.

Subtopic:  Light Reaction: Photophosphorylation |
 71%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

Stroma lamella in plastid lacks

1. PS II and PS I.
2. PS II and NADP reductase.
3. PS I and NAD reductase.
4. PS II only.

Subtopic:  Light Reaction: Photophosphorylation |
 86%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Chemiosmosis (related with respiration, photosynthesis ETS) does not require
1. Membrane, a proton pump.
2. ATP.
3. A proton gradient.
4. ATPase.

Subtopic:  Light Reaction: Photophosphorylation |
 69%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

If there are 12 molecules of CO2 to be fixed in photosynthesis, then how many turns of the Calvin cycle and how many molecules of glucose will be synthesized respectively?

1. 9 turns, 2 molecules.
2. 12 turns, 1 molecule.
3. 6 turns, 1 molecule.
4. 12 turns, 2 molecules.

Subtopic:  Dark Reaction : Calvin Cycle |
 80%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

The synthesis of one molecule of glucose during the Calvin cycle requires.

1. 12 molecules of ATP and 18 molecules of NADPH2

2. 6 molecules of ATP and 12 molecules of NADPH2

3. 18 molecules of ATP and 12 molecules of NADPH2

4. 12 molecules of each of ATP and NADPH2

Subtopic:  Dark Reaction : Calvin Cycle |
 85%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.