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Which one passes protons to outer mitoch...

Which one passes protons to outer mitochondrial chamber

A

Fes

B

FMN

C

CoQ

D

Both B and C

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Mitochondrial Structure**: - Mitochondria have two membranes: an outer membrane and an inner membrane. The space between these membranes is called the intermembrane space, while the innermost area is known as the mitochondrial matrix. 2. **Identifying the Process**: - The process of respiration, specifically the electron transport chain (ETC), occurs in the inner mitochondrial membrane. This is where the transfer of electrons and protons takes place. 3. **Role of Electron Transport Chain**: - The electron transport chain consists of a series of protein complexes. As electrons are transferred through these complexes, protons (H⁺ ions) are pumped from the mitochondrial matrix into the intermembrane space. 4. **Identifying Key Components**: - The question asks which components pass protons to the outer mitochondrial chamber (intermembrane space). The key players in this process are FMN (Flavin Mononucleotide) and coenzyme Q (also known as ubiquinone). 5. **Conclusion**: - Both FMN and coenzyme Q are responsible for transferring protons into the intermembrane space during the electron transport chain. Therefore, the correct answer is that both B (FMN) and C (coenzyme Q) pass protons to the outer mitochondrial chamber. 6. **Final Answer**: - The correct option is **4 (both B and C)**. ---
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