MHT CET 202626 AprilMorning Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 26 April
- Shift
- Morning Shift
- Subject
- Biology
- Chapter
- Respiration in Plants
MHT CET 2026 · 26 April · Morning Shift · Biology · Respiration in Plants
Select the set of correct statements regarding ETS in aerobic...
Select the set of correct statements regarding ETS in aerobic respiration.
A. catalyses the synthesis of ATP from ADP.
B. Protons are channeled from outer chamber of mitochondria into inner chamber by part of oxysome.
C. Cytochrome C acts as mobile electron carrier transferring electrons from Complex V and IV.
D. Cytochrome C is a small, calcium containing protein tightly associated with inner membrane.
E. Cytochrome C acts as mobile electron carrier transferring electrons from complex III to IV.
Select the correct option
A. catalyses the synthesis of ATP from ADP.
B. Protons are channeled from outer chamber of mitochondria into inner chamber by part of oxysome.
C. Cytochrome C acts as mobile electron carrier transferring electrons from Complex V and IV.
D. Cytochrome C is a small, calcium containing protein tightly associated with inner membrane.
E. Cytochrome C acts as mobile electron carrier transferring electrons from complex III to IV.
Select the correct option
Options
- AA, B and C only
- BA, C and D only
- CC and D only
- DA, B and E only
Correct answer
D. A, B and E only
Step-by-step solution
Statement A is correct. The headpiece of ATP synthase contains the catalytic site for the synthesis of ATP from ADP and inorganic phosphate.
Statement B is correct. The part of the oxysome (ATP synthase) forms a transmembrane channel that facilitates the diffusion of protons from the intermembrane space (outer chamber) to the mitochondrial matrix (inner chamber).
Statement C is incorrect. Cytochrome c transfers electrons between Complex III (Cytochrome complex) and Complex IV (Cytochrome c oxidase), not Complex V.
Statement D is incorrect. Cytochrome c is a small protein attached loosely to the outer surface of the inner mitochondrial membrane, and it contains iron (in its heme group), not calcium.
Statement E is correct. Cytochrome c acts as a mobile electron carrier transferring electrons from Complex III to Complex IV.
Therefore, statements A, B, and E are correct.
Answer: A, B and E only
Statement B is correct. The part of the oxysome (ATP synthase) forms a transmembrane channel that facilitates the diffusion of protons from the intermembrane space (outer chamber) to the mitochondrial matrix (inner chamber).
Statement C is incorrect. Cytochrome c transfers electrons between Complex III (Cytochrome complex) and Complex IV (Cytochrome c oxidase), not Complex V.
Statement D is incorrect. Cytochrome c is a small protein attached loosely to the outer surface of the inner mitochondrial membrane, and it contains iron (in its heme group), not calcium.
Statement E is correct. Cytochrome c acts as a mobile electron carrier transferring electrons from Complex III to Complex IV.
Therefore, statements A, B, and E are correct.
Answer: A, B and E only