chapter 6 thru 10 - Chapter 6 -Proteins Amino acids,...

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Chapter 6 -Proteins Amino acids, protein building blocks…nitrogen makes it different -20 diff amino acids -R group (side chain) makes them different Non essential amino acids - look on slide at amino acids Essential amino acids (we have to have them in the diet) (PVT MaT HILL) - look at slide Protein shapes -structure dictates the function of protein Denaturation -going to lose its function - uncoiling of proteins -denatured by heat/ strong agitation/ acid Get from summer Digestibility -amount of amino acids absorbed from a given protein -animal are more digestible than plant proteins because a lot of plants in their cell walls have proteins and its hard for digestive enzymes to get to the proteins to break them down to amino acids The incredible edible egg -egg proteins is the most digestible and complete protein in the food supply and we use it as a reference for other foods…most protein is in the egg white Vegetarianism -lactoovovegetarian- consume plant, milk, and egg products -lactovegetarian- consume milk and plant products -vegans- do no consume any animal product whatsoever, only plant products Meal planning -recommended combine proteins when you are a vegan Lacto/ovo -diet adequate Vegan -energy needs difficult to meet
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-risk of deficiencies Vitamin B12, vitamin D Calcium, iron, zinc- animal sources Beneficial effects -normal body weight -decrease blood pressure -decrease chronic illness Marasmus Prolonged Starvation -kcal/protein intake deficit -chronic -incidence -young children 6montsh to 18 months of age -illness-stunted brain growth, anemia, immune functions is oppressed, diarrhea -symptoms- AIDs, anorexia nervosa, cancer, and kidney and liver disease Kwashiorkor Starvations -sudden deficit kcal/ protein Metabolism Cellular respiration- take glucose from plant and break it down into CO2 and H20-use this energy for whatever we need it to be used for -catabolism- break down of larger molecule into smaller molecule -mitochondria- this is where energy break downs - a lot of energy in bonds Conservation of E Energy come from sun, breaks down glucose, and part of the heat is lost and part of it is captured and conserved into ATP …that molecule provides function for body ATP has two high energy bonds so they release a lot of energy ATP is broken down an energy is release and whats left is ADP + P then ADP plus a phosphate uses energy to go back into ATP…. ……
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Mitochondria…oxidative pathway/ CO2 + H20 Glucose>>pyruvate>>>>acetyl coA>>>TCA cycle Pyruvate into acetyla CoA is irreversible…where is glycolysis is reversible…Acetyl CoA cannot be made into glucose !!!!********** TEST Electrons are carried from chain to chain of proteins and lose energy…the energy that’s lost is partly lost as heat and partly captured as ATP…most water is made in the electron transport chain. .at the end Glucose is broken down to CO2 and H20. .heat is released and ATP is made OP. .energy yield Don’t memorize how much ATP is produced…just where it is produced High energy electrons and associated hydrogens are shuttled to electron transport chain
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This note was uploaded on 03/19/2008 for the course NTR 311 taught by Professor Lydiasteinman during the Spring '08 term at University of Texas at Austin.

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chapter 6 thru 10 - Chapter 6 -Proteins Amino acids,...

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