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Catabolism and Anabolism of Fats and Proteins

fun shtuff

Radhika Jangi

on 7 December 2012

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Transcript of Catabolism and Anabolism of Fats and Proteins

Catabolism and Anabolism of Proteins and Fats and Feedback Mechanisms Catabolism of Proteins Catabolism of Fats Anabolism of Proteins Anabolism of Fats Proteins from food are hydrolyzed into amino acids

Amino acids incorporated into organisms own proteins

Compounds formed as intermediates of glycolysis and the Krebs cycle can be diverted into anabolic pathways as precursors for molecular structure feedback inhibition= the end product of an anabolic pathway inhibits the enzyme that catalyzes an early step of the pathway
prevents the needless diversion of important metabolic intermediates
is negative feedback Phosphofructokinase = allosteric enzyme
inhibited by ATP stimulated by AMP
as ATP accumulates, inhibition of enzyme slows down glycolysis
as cellular work converts AT to ADP faster than ATP is regenerated, enzyme begins to work again Energy Transfer Catabolism = exergonic reaction, produces ATP
Anabolism = endergonic reaction, uses ATP
Together, they use energy coupling in order to complete reactions with ATP and ADP + P Alpha- Ketogluterate Ammonium Amine Group Regulation of Cell Respiration Fats are synthesized from acetyl CoA.
Intermediate compounds from the citric acid cycle and glycolysis are precursors of fats THE END Acetyl-CoA = Oxidizing Agent
NADPH = Reducing Agent Broken Down into Amino Acids Deamination removes Amine Groups Rest goes to Citric Acid Cyle Oxidizing Agent Reducing Agent Fats are good fuel because of their high energy fatty acid tails.
Enzymes Seperate Glycerol and Fatty Acid Chains Glycerol = Oxidizing Agent
ATP = Reducing Agent G3P = Reducing Agent
NAD+ = Oxidizing Agent Beta Oxidation Acyl-CoA (acetyl CoA) = Reducing Agent
FAD = Oxidizing Agent L-3-Hydroxacyl-CoA = Reducing Agent
NAD+ = Oxidizing Agent FADH2 and NADH go to ETC Amino Acids = reducing agents
Water = oxidizing agent
Full transcript