Electron Transport system (ETS) is located in mitochondrial

Options

A. outer membrane
B. inter membrane space
C. inner membrane
D. matrix

Explanation

**Step-by-Step Solution:**

1. **Understanding the Electron Transport System (ETS):**
- The Electron Transport System (ETS) is a crucial component of cellular respiration, specifically in the process of oxidative phosphorylation.
- It is responsible for transferring electrons through a series of protein complexes, ultimately leading to the production of ATP.

2. **Location of ETS:**
- The ETS is located in the mitochondria, which are known as the powerhouse of the cell.
- Within the mitochondria, there are different compartments: the outer membrane, the inner membrane, the intermembrane space, and the matrix.

3. **Identifying the Correct Membrane:**
- The ETS operates specifically in the inner mitochondrial membrane.
- This membrane is where the protein complexes of the ETS are embedded, allowing for the transfer of electrons and the pumping of protons (H+) into the intermembrane space.

4. **Function of the Inner Mitochondrial Membrane:**
- The inner mitochondrial membrane contains various electron carriers and proton pumps that facilitate the movement of electrons and protons.
- As electrons move through the ETS, protons are pumped from the mitochondrial matrix into the intermembrane space, creating a proton gradient.

5. **ATP Generation:**
- The proton gradient created by the ETS is used by ATP synthase, an enzyme located in the inner mitochondrial membrane, to produce ATP from ADP and inorganic phosphate (Pi).

6. **Conclusion:**
- Therefore, the correct answer to the question about the location of the Electron Transport System (ETS) is the inner mitochondrial membrane.

**Final Answer:**
The Electron Transport System (ETS) is located in the inner mitochondrial membrane.

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