- 1(current)
Q. No.Consider the given two statements:
| Assertion (A): | Electron transport via cytochrome b6f is responsible for creating the proton gradient that drives the synthesis of ATP in chloroplasts. |
| Reason (R): | Cytochrome b6f complex functions to mediate the transfer of electrons and of energy between Photosystem II and Photosystem I, while transferring protons from the chloroplast stroma across the thylakoid membrane into the lumen. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Â Chemiosmotic hypothesis |
 71%
Please attempt this question first.
Hints
If chloroplasts are illuminated with sunlight, the lowest pH would be observed in:
| 1. | stroma | 2. | intermembrane space |
| 3. | thylakoid space | 4. | cytosol |
Subtopic: Â Chemiosmotic hypothesis |
 74%
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
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.