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: Physiology
Where in the cell does Glycolysis occur? 
Select and explain. 
A. Cytosol, B. Mitochondria, C. Nucleus, D. Lysosome
A: Cytosol
Answer: A: Cytosol 
Explanation: Glycolysis occurs in Cytosol, whereas TCA cycle occurs in Mitochondrion.