Physiology 1020 Lecture Notes - Lecture 16: Gluconeogenesis, Alpha Cell, Glycogenolysis

• School: Western University
• Department: Physiology
• Course: Physiology 1020
• Professor: Christine Bell

Document Summary

Metabolism is defined as the chemical changes that occur within a cell to either manufacture energy, store energy, or build new structures. Recall that all of the food in the digestive module is made up of smaller building blocks. Triglycerides, which make up most of the fat found in the body, consist of three fatty acid chains attached to one molecule of glycerol. Proteins consist of long chains of amino acids linked together, and carbohydrates are long chains of monosaccharides (like glucose) joined together these larger molecules are broken down in the digestive tract and then absorbed. Once in the body, some may partially reform while others stay as building blocks. These building blocks are circulating in the body and can be used to create new structures in the cell or to form atp, or they can be stored for later use. Their storage form may not be the same as their circulating form.