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Principles

Metabolism nutrition enzymes

QuestionAnswer
breakdown of molecules . Complex to simple catabolism
building up molecules from basic building block - simple to complex anabolism
complex to simple, yield energy.... oxidative
simple to complex, requires energy... reductive
catalyst that speeds up a reaction.. enzyme
assists and enzyme... co enzyme
thermodynamic is a change in heat
what needs to be removed from amino acids nitrogen
Lipids are broken down to.... glycerol and fatty acids
glucose is formed from noncarbohydrate sources gluconeogenesis
glucose + 2 NAD+ + 2 ADP + 2 Pi =......... 2 Pyruvate + 2 NADH + 2 ATP + 4 H+
where is the krebs cycle mitochondria
enzyme used in step 1 of glycolysis hexokinase
enzyme used in step 3 of glycolysis phosphofructokinase (PFK)
main regulator of of enzyme glycolysis phosphofructokinase (PFK)
Too much - too high ATP inhibits which enzyme from working.. phosphofructokinase (PFK)
Which organic compound activates PFK (in presence of ) ADP
enzyme used in step 10 of glycolysis pyruvate kinase
metabolism is a series of pathways of.... linked chemical reaction
what are amino acids, monosaccharides, purines, pyrimides metabolites
enzymes that change their conformational ensemble upon binding of an effector allosteric
substrate binding site... active site
where other molecules bind - affecting (increase or decrease) the enzymes reaction regulatory site
3 factors affecting rate of catalysed reaction temp, concentration, pH
co-factors of enzyme activity... vitamins
metal ions invloved in enzyme co factors Mg, Cu, Zn, Fe
most important and widespread vitamin-derived coenzymes NAD
If flavin (FAD) gains an electron it is... reduced
FAD reduction it becomes FADH
allosteric activator shifts the curve left or right to speed up reaction? left
allosteric inhibitor shifts the curve left or right to speed up reaction? right
what happens to PFK in presence of ATP catabolic reaction is inhibited (sign that enough energy is present so doesnt need to create anymore)
what happens to PFK in presence of ADP catabolic reaction is activiated (ADP present means the cell needs to produce more ATP)
molecule that binds to active site and prevents subtrate from binding to an enzyme inhibitor
Gibbs free energy change of catabolism negative
Gibbs free energy change of anabolism postitive
Created by: Gemma Macklin
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