Physiology 2130 Lecture Notes - Lecture 15: Alpha Cell, Cortisol, Glycogenolysis

• School: Western University
• Department: Physiology
• Course: Physiology 2130
• Professor: Christine Bell

Document Summary

Metabolism: the chemical changes that occur within a cell to manufacture energy, store energy, or build new cell structures: two types: Anabolism: creation of large molecules from small ones with the use of energy (atp) Catabolism: the breakdown of large molecules into smaller ones resulting in the release of energy (atp: atp = adenosine triphosphate. Absorbed as monomers - once in the body they may remain as monomers or partially reform: may be stored in a different form from their circulating form. Triglycerides: make up most of the fat found in the body (1 glycerol + 3 fatty. Amino acids become structural or functional proteins inside muscle cells. Glycogen: the carbohydrate polymer of glucose, which stores glucose in muscle and liver cells. Glucose: (first choice) contributes to 1% the total energy requirements of the body. Fatty acids: (second choice) contribute to 77% the total energy produced. Reserves can last for roughly 2 months (depends on the individual)