NUTR 250 Study Guide - Midterm Guide: Glycogen Storage Disease, Diabetes Mellitus Type 1, Cori Cycle
Document Summary
Metabolic pathways: groups of reactions that occur in progression and form intermediates. Anabolism: small to large (legos building house) Catabolism: large to small (house getting torn down) Food is broken down into building blocks then into acetyl-coa then go in citric acid cycle and electron transport chain. Like money, make some to spend some. Phosphate bonds of atp have high energy bonds. Reduction: gain of electrons, loss of oxygen. Glycolysis doesn"t require oxygen: glycolysis, transition reaction, occurs in mitochondria, requires oxygen c. Irreversible: citric acid cycle, acetyl-coa is converted to carbon dioxide, doesn"t require oxygen, electron transport chain, requires iron, copper, oxygen. Cori cycle: pyruvate turns into lactate which goes to liver and is turned into atp which goes back to muscle. Lipolysis: occurs in cytosol; breakdown of triglycerides into fatty acids. Fatty acid oxidation (beta-oxidation): breakdown of fatty acids into acetyl-coa; in mitochondria. Ketones are used as energy during fasting. Amino acids are broken down for fuel.
