1 Chapter 24 Class Notes BSC 2086 Fall 2010 A nutrient is a substance in food that ___________________________________________________________. List 6 nutrients: (Slide 5) Describe 4 sources of carbohydrates: What are 3 uses of carbohydrates? Describe 3 sources of lipids: What are 2 essential fatty acids? (Slide 10) What are 3 essential uses of lipids? (Slide 11) What is an important function of fatty acid deposits? (Slide 14) What provides complete proteins? Incomplete proteins? All the essential amino acids? 2 (Slide 16-17) What is the all or none rule? What is adequacy of caloric intake of proteins mean? What is nitrogen balance? (Slide 21) Most vitamins function as _________________________. Vitamins ___________________________ are synthesized in the body. (Slide 27) What is cellular respiration? (Slide 28) What are the 3 stages of metabolism in processing nutrients, and where do #2 and # 3 occur? (Slide 30) Oxidation-reduction (redox) reactions, oxidized substances ________________ electrons and energy, and ____________________ substances gain electrons and energy. What 2 coenzymes act as electron (hydrogen) acceptors? (Slide 32) What are the 2 mechanisms of ATP synthesis? What is substrate level phosphorylation and where does it occur? (Slide 35) _____________________________________ is a chemiosmotic process, what does this mean? 3 (Slide 36) Describe oxidative phosphorylation in the mitochondria: (Slide 38) Write the equation for the oxidation of glucose: What 3 pathways catabolize glucose? Please label the picture below: 4 (Slide 40) Describe glycolysis and please also name the 3 phases of glycolysis: (Slide 47) What are the final products of Glycolysis? Where does the Krebs Cycle take place? (Slide 49) The Krebs cycle is a _________________________ phase. What 2 things are produced by the first 3 steps? (Slide 50) What are the final products of the Krebs cycle? (Slide 51) Does the Krebs cycle use oxygen? (Slide 53) The ________________________ transport chain and ____________________________________________ directly use oxygen, and what else? What provides the protons and electrons the transport chain? Describe the 3 steps on slide 55: (Slide 57) What is formed by the last step of oxidative phosphylation? (Slide 65) Where does gluconeogenesis take place? What transports products of fat digestion? (Slide 69) Fats can be _______________________ and enter the ___________________________________. (Slide 71) Triglyceride synthesis occurs when cellular ____________________________________________ are high. 5