This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Mitochondria is involved in all of the following, except 
Select and explain. 
A. ATP production, B. Apoptosis, C. Tricarboxylic acid cycle, D. Fatty acid biosynthesis
D: Fatty acid biosynthesis
Answer: D: Fatty acid biosynthesis 
Explanation: Fatty acid biosynthesis 

Fatty acid synthesis occurs in the cytosol
TCA cycle and ATP production (via ETC) occur in mitochondria
Mitochondria play a key role in apoptosis