Question

multiple choice question
what is the role of lipoprotein lipase?

○ to remove cholesterol from lipoproteins
○ to hydrolyze triglycendes in adipocytes
○ to hydrolyze triglycerides in lipoproteins
○ to synthesize lipoproteins

Explanation:

Lipoprotein lipase (LPL) is an enzyme that acts on triglycerides within lipoproteins (like chylomicrons and very - low - density lipoproteins) to hydrolyze them into free fatty acids and monoglycerides.

• The option "To remove cholesterol from lipoproteins" is incorrect as LPL does not act on cholesterol in this way.
• The option "To hydrolyze triglycerides in adipocytes" is wrong because LPL acts on triglycerides in lipoproteins, not directly in adipocytes (adipocytes store fat, and LPL helps in delivering fatty acids from lipoproteins to cells including adipocytes by hydrolyzing triglycerides in lipoproteins).
• The option "To synthesize lipoproteins" is incorrect as LPL is a hydrolytic enzyme, not a synthetic one for lipoproteins.
• The correct role is to hydrolyze triglycerides in lipoproteins.

Answer:

C. To hydrolyze triglycerides in lipoproteins (assuming the options are labeled A, B, C, D with the third option being C. If the original options had different labels, adjust accordingly. For example, if the third option was labeled as Option 3, then "Option 3. To hydrolyze triglycerides in lipoproteins")