- 1(current)
Q. No.Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis?
It involves:
It involves:
| 1. | Reduction of NADP to NADPH2 on the stroma side of the membrane |
| 2. | Breakdown of proton gradient |
| 3. | Breakdown of electron gradient |
| 4. | Movement of protons across the membrane to the stroma |
Subtopic: Â Chemiosmotic hypothesis |
 74%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
The mechanism by which electron transport is coupled to ATP production by means of a proton gradient is called
| 1. | chemiosmosis |
| 2. | crassulacean acid metabolism |
| 3. | fluorescence |
| 4. | the C3 pathway |
Subtopic: Â Chemiosmotic hypothesis |
 97%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
In photosynthesis in eukaryotes, the transfer of electrons through a sequence of electron acceptors provides energy to pump protons across the
| 1. | chloroplast outer membrane |
| 2. | chloroplast inner membrane |
| 3. | thylakoid membrane |
| 4. | inner mitochondrial membrane |
Subtopic: Â Light Reaction: Electron Transport |Â Chemiosmotic hypothesis |
 78%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
In chloroplast, the highest number of protons are found in?
| 1. | lumen of thylakoids | 2. | intermembrane space |
| 3. | antennae complex | 4. | stroma |
Subtopic: Â Chemiosmotic hypothesis |
 89%
From NCERT
NEET - 2016
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Identify the correct statements regarding chemiosmotic hypothesis:
Choose the correct answer from the options given below:
| (a) | Splitting of the water molecule takes place on the inner side of the membrane. |
| (b) | Protons accumulate within the lumen of the thylakoids. |
| (c) | The primary acceptor of electrons transfers the electrons to an electron carrier. |
| (d) | NADP reductase enzyme is located on the stroma side of the membrane. |
| (e) | Protons increase in number in stroma. |
| 1. | (a), (b) and (e) | 2. | (a), (b) and (d) |
| 3. | (b), (c) and (d) | 4. | (b), (c) and (e) |
Subtopic: Â Chemiosmotic hypothesis |
 76%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Which of the following combinations is required for chemiosmosis?
| 1. | Proton pump, electron gradient, NADP synthase. |
| 2. | Membrane, proton pump, proton gradient, ATP synthase. |
| 3. | Membrane, proton pump, proton gradient, NADP synthase |
| 4. | Proton pump, electron gradient, ATP synthase |
Subtopic: Â Chemiosmotic hypothesis |
 80%
From NCERT
NEET - 2023
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Consider the two statements:
| Assertion(A): | The protons or hydrogen ions that are produced by the splitting of water accumulate within the lumen of the thylakoids. |
| Reason(R): | The primary accepter of electrons, which is located towards the outer side of the membrane, transfers its electron not to an electron carrier but to an H carrier. |
| 1. | (A) is True but (R) is False |
| 2. | Both (A) and (R) are True and (R) explains (A) |
| 3. | Both (A) and (R) are True but (R) does not explain (A) |
| 4. | Both (A) and (R) are False |
Subtopic: Â Chemiosmotic hypothesis |
 61%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
The ATP synthase enzyme consists of two parts where:
| I: | CF0 is embedded in the thylakoid membrane and forms a transmembrane channel that carries out facilitated diffusion of protons across the membrane. |
| II: | CF1 protrudes on the outer surface of the thylakoid membrane on the side that faces the stroma. |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
Subtopic: Â Chemiosmotic hypothesis |
 93%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
- 1(current)
Q. No.
© 2025 GoodEd Technologies Pvt. Ltd.