Which tissue is a major storage site for triglycerides?

• A. Skeletal muscle
• B. Adipose tissue
• C. Liver
• D. Blood plasma

Answer: (B)

Triglycerides serve as long-term energy storage, and adipose tissue is specialized to store large amounts of fat. In adipocytes, triglycerides are packed into a single large lipid droplet, giving this tissue a massive capacity to hold energy for later use. When energy is needed, hormones trigger lipolysis to release fatty acids into the bloodstream for other tissues to burn. Other tissues like the liver and skeletal muscle do store lipids, but not in the same huge reservoir as adipose tissue, and blood plasma merely transports triglycerides rather than storing them. So adipose tissue is the major storage site for triglycerides.