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
Cofactor required for lipoprotein lipase activity is: 
Select and explain. 
A. Apo A-II, B. Apo C-II, C. Apo C-III, D. Apo B-II
B: Apo C-II
Answer: B: Apo C-II 
Explanation: The enzyme lipoprotein lipase is present in the capillary walls of adipose tissue, cardiac and skeletal muscle, besides other tissues. 
lt hydrolyses a portion of triacylglycerols present in chylomicrons and VLDL to liberate free fatty acids and glycerol.
Lipoprotein lipase is activated by apo C ll.

Key Concept:
Lipoprotein lipase is activated by apo C ll.
Ref : Textbook of Biochemistry, Satyanarayana