Question

Carnitine acylcarnitine translocase is present in:

• A. Outer mitochondrial membrane
• B. Inner mitochondrial membrane
• C. Inter membrane space of mitochondria
• D. Mitochondrial matrix

Hint:

Carnitine shuttle:
CPT I: outer mitochondrial membrane.
Translocase: inner mitochondrial membrane.
CPT II: inner mitochondrial membrane (matrix side).

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Carnitine shuttle transports fatty acids into mitochondria.
It involves specific enzymes and transporters.

Step 2: Key Formula or Approach:
No specific formula.
Need to know the carnitine shuttle components.

Step 3: Detailed Explanation:
Carnitine palmitoyltransferase I (CPT I) is on the outer mitochondrial membrane.
Carnitine acylcarnitine translocase is on the inner mitochondrial membrane.
CPT II is on the inner mitochondrial membrane (matrix side).
Thus, carnitine acylcarnitine translocase is present in the inner mitochondrial membrane.

Step 4: Final Answer:
Carnitine acylcarnitine translocase is present in the inner mitochondrial membrane.
Hence, the correct option is (B).