6. What tissues express lipoprotein lipase?(specify one or more answers) nervous tissue adipose tissue J lungs red blood cells bone marrow

Lipoprotein lipase (LPL) is an enzyme that plays a crucial role in the metabolism of lipoproteins, which are particles that transport lipids (fats) in the blood. LPL is responsible for breaking down triglycerides, a type of lipid, into fatty acids and glycerol, which can then be absorbed by cells for energy production or storage.<br /><br />LPL is primarily expressed in tissues that are involved in lipid metabolism and storage. Among the options provided, the correct answers are:<br /><br />1. Adipose tissue: Adipose tissue is a type of connective tissue that stores energy form of fat. It plays a significant role in lipid metabolism and is a major site of LPL expression. LPL in adipose tissue helps to break down triglycerides stored in fat cells, releasing fatty acids that can be used for energy production or stored again.<br /><br />2. Red blood cells: While red blood cells primarily function in oxygen transport, they also play a role in lipid metabolism. LPL is expressed on the surface of red blood cells, where it helps to break down triglycerides present in the blood, making them available for tissues that require fatty acids for energy production.<br /><br />The other options, nervous tissue, lungs, and bone marrow, are not primary sites of LPL expression. Nervous tissue is primarily involved in transmitting signals and does not play a significant role in lipid metabolism. Lungs are involved in gas exchange and do not have a primary role in lipid metabolism. Bone marrow is responsible for producing blood cells and does not have a significant role in lipid metabolism.<br /><br />In summary, among the options provided, adipose tissue and red blood cells are the tissues that express lipoprotein lipase.