MHT CET 202625 AprilEvening Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 25 April
- Shift
- Evening Shift
- Subject
- Biology
- Chapter
- Respiration in Plants
MHT CET 2026 · 25 April · Evening Shift · Biology · Respiration in Plants
Given below are two statements. Statement I - Protons are channeled...
Given below are two statements.
Statement I - Protons are channeled from inner chamber of mitochondria into outer chamber by part of oxysome during ETS.
Statement II - Cytochrome C is a small, iron containing protein tightly associated with inner membrane.
In the light of above statements, select the correct option given below:
Statement I - Protons are channeled from inner chamber of mitochondria into outer chamber by part of oxysome during ETS.
Statement II - Cytochrome C is a small, iron containing protein tightly associated with inner membrane.
In the light of above statements, select the correct option given below:
Options
- ABoth statement I and statement II are correct
- BBoth statement I and statement II are incorrect.
- CStatement I is correct but statement II is incorrect
- DStatement I is incorrect but statement II is correct.
Correct answer
B. Both statement I and statement II are incorrect.
Step-by-step solution
Statement I is incorrect because the part of the oxysome (ATP synthase) forms a channel through which protons move from the intermembrane space (outer chamber) to the matrix (inner chamber) down the electrochemical proton gradient during ATP synthesis, not from the inner chamber to the outer chamber.
Statement II is incorrect because Cytochrome c is a small protein attached loosely to the outer surface of the inner mitochondrial membrane, not tightly associated. It acts as a mobile carrier for the transfer of electrons between complex III and IV.
Therefore, both Statement I and Statement II are incorrect.
Answer: Both statement I and statement II are incorrect.
Statement II is incorrect because Cytochrome c is a small protein attached loosely to the outer surface of the inner mitochondrial membrane, not tightly associated. It acts as a mobile carrier for the transfer of electrons between complex III and IV.
Therefore, both Statement I and Statement II are incorrect.
Answer: Both statement I and statement II are incorrect.