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12 Cards in this Set

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Cori Cycle
In Muscle- pyruvate to lactate-NADH builds up from glycolysis and muscle hands lactate the H and leaves NAD
Liver-uses 6 atp and 2 nadh to make glucose
Pentose Phosphate Shunt
Generates Ribose-5-pi for nucleotide biosynthesis and NADPH- needed is fatty acid and steroid biosynthesis
takes glucose 6 phosphate and makes ribose and nadph
Pentose Phosphate shunt
Oxidative Branch
makes pentose-5-phosphate and 2 NADPH
Pentose Phosphate shunt
Non-Oxidative Branch
makes pentwhen run backward ose-5-phosphate
PDH
Pyruvate Dehydrogenase
Complex of 3 subunits with different enaymatic activitiy

takes Pyruvate through magic portal to form acetyl-CoA
E1
E2
E3
Pyruvate Dehydrogenase=
Dihydolipoyl transacetylase=
Dihydolipoyl dehydrogenase
TPP
Thiamine Pyrophoshate
reguired in action of PDH
E1
TPP becomes anion and attacks Pyruvate which loses a co2
TPP protonated to form hydrosyethyl TPP whichis oxidied to acety group and transfered to Lipoamide
E2
the now acetyl lipoamide gives acteyl grp. to CoA to make acetyl Co A
E3
Lipoamide gives 2e- to its FAD prothetic group and then to NAD
Allosteric Regulation of PDH complex
Inhibited=High energy sources, acetyl CoA, NADH, ATP
Stimulated=low energy sources, AMP, NAD, CoA
PDH
less active=pi, high energy signals, acetyl CoA, NADH, ATP

more active=depi, low energy sources, AMP, NAD, CoA