Question

multiple choice question
which enzyme hydrolyzes triglycerides contained in lipoproteins?

lipoprotein phosphatase
lipoprotein hydroxylase
lipoprotein lipase
lipoprotein carboxylase

Explanation:

To determine the enzyme that hydrolyzes triglycerides in lipoproteins, we analyze each option:

• Lipoprotein phosphatase: Acts on phosphate groups, not triglyceride hydrolysis.
• Lipoprotein hydroxylase: Involved in hydroxyl group addition, not triglyceride breakdown.
• Lipoprotein lipase: Specifically catalyzes the hydrolysis of triglycerides in lipoproteins (e.g., chylomicrons, VLDL) to release fatty acids and monoglycerides.
• Lipoprotein carboxylase: Involved in carboxylation, not triglyceride hydrolysis.

Answer:

C. Lipoprotein lipase