Final answer:
Lipoprotein Lipase (LPL) is crucial for both the storage of free fatty acids in adipose tissue and their use in skeletal muscle for energy, making (d) Two of the above the correct answer. LPL hydrolyzes the triglycerides in chylomicrons and VLDL to release free fatty acids, which can be used or stored by various tissues such as muscle or adipose tissue.
Step-by-step explanation:
Lipoprotein Lipase (LPL) plays a critical role in the storage of free fatty acids (FFA) in adipose tissue and the utilization of FFA in skeletal muscle. Specifically, LPL is an enzyme that hydrolyzes the triglycerides present in chylomicrons and very low-density lipoproteins (VLDL) into free fatty acids and glycerol. These fatty acids can then be taken up by adipose tissue for storage or by skeletal muscle for energy production. When dietary triacylglycerols are transported in the bloodstream within chylomicrons, LPL acts upon these chylomicrons when they encounter the walls of capillaries in muscle or adipose tissue. The enzyme hydrolyzes the triglycerides, allowing the free fatty acids and glycerol to pass through the capillary walls. In adipose tissue, these components can be re-esterified and stored as fat, whereas in skeletal muscle, they can be oxidized to generate energy in the form of ATP. The role of LPL in chylomicron metabolism is distinct from its involvement in the formation of chylomicrons, which occur within the intestinal epithelium. Therefore, d) Two of the above is the correct answer, encompassing both the storage of FFA in adipose tissue (a) and the utilization of FFA in skeletal muscle (b), but not the formation of chylomicrons (c).