BIOCHEM 2EE3 Lecture Notes - Lecture 6: Ester, Triglyceride, Glycerol
Module 6 -2 METABOLISM
Energy metabolism
Energy metabolism: The pathways involved in the generation or storage of metabolic energy
Three macronutrients
• Carbohydrates
• Lipids
• Proteins
Storage form of macronutrients
three macronutrients that we consume in our diet to generate energy are also stored in the body as
energy reserves, with the exception of protein.
Protein not stored in the body as an energy reserve
Lipids
The basic building block: free fatty acid unit.
Storage: Three of these are esterified with a molecule of glycerol to form a triglyceride, which is how
the body stores lipids.
carbrohydrates
The basic building block: the glucose unit.
Storage: Glucose molecules are linked together to form a very large molecule of glycogen,
- which is how the body stores carbohydrates
.
Document Summary
Energy metabolism: the pathways involved in the generation or storage of metabolic energy. Storage form of macronutrients three macronutrients that we consume in our diet to generate energy are also stored in the body as energy reserves, with the exception of protein. Protein not stored in the body as an energy reserve. The basic building block: free fatty acid unit. Storage: three of these are esterified with a molecule of glycerol to form a triglyceride, which is how the body stores lipids. carbrohydrates. Storage: glucose molecules are linked together to form a very large molecule of glycogen, Which is how the body stores carbohydrates. The basic building block the amino acid unit. No storage: as mentioned, the body does not store" protein in a way that is analogous to lipid and carbohydrate storage. Nonetheless, under periods of prolonged starvation, the body will draw on the protein found in muscle as energy.