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MCAT bio*2
cell metabolism
34
Biology
Graduate
05/03/2014

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Term
oxidation means
Definition
making bonds to O
Term
Catabolism of glucose eqn
Definition
C6H12O6 +6O2 -> 6CO2 +6H2O
Term
in catabolism of glucose what is ox/reduced
Definition
C in glucose is oxidized to CO2
oxygen reduced to H20
Term
Glycolysis occurs in ___ and is ___level phosphorylation
Definition
cytosol
substrate level
Term
Glycolysis produces per glucose
Definition
2 pyruvates, 2 ATP, 2NADH
Term
fermentation produces
Definition
ethanol or lactate
Term
cori cycle
Definition
lactate transported to liver to be converted back to glucose
Term
Pyruvate dehydrogenase complex location
Definition
matrix
Term
krebs cycle location
Definition
matrix
Term
etc location
Definition
inner membrane
Term
ETC is ____phosphorylation
Definition
oxidative
Term
ETC brief description to make ATP
Definition
NADH and FADH2 give e- making H2O and pumping H+ out of matrix making higher concentration H+ outside matrix so that they spontaneously flow thru ATP synthase to make ATP
Term
Regulation of glycolysis happens at
Definition
Hexokinase, PFK-1, Pyruvate Kinase
Term
regulation of glycolysis via hexokinase
Definition
inhibited by: glucose-6-phosphate
Term
regulation of glycoolysis via PFK-1
Definition
activated by AMP, F6P, F6BP, insulin
deactivated by: ATP, f-1,6-BP
Citrate,
glucagon
Term
regulation of glycolysis via pyruvate kinase
Definition
activated by AMP, F-1,6-BP
deactivated by ATP, acetyl coA, phosphorylation, alanine
Term
Gluconeogenesis
Definition
production of glucose; reverse of glycolysis occurs in liver to maintain blood glucose also in kidney
Term
glycogen metabolism
Definition
storage molecule of glucose in liver and muscles
activated by insulin, glycogen broken down via glucagon
Term
regulation of TCA
Definition
citrate synthase, isocitrate DH, alpha ketoglutamate, pyruvate carboxylate
activated via ADP, Ca2+ high substrate
deactivated via ATP high product levels NADH
Term
ATP produced per NADH/ FADH2
Definition
1 NADH= 2.5 ATP
1 FADH2= 1.5 ATP
Term
unsaturated acids compared to saturated
Definition
unsaturated FA already have a dbl so they produce 1 less FADH2 in there oxidation
Term
first step in B-oxidation of FA
Definition
activation: acyl-CoA synthase
Term
catabolism of an 18C FA would make ___ acetyl coA, FADH, NADH in ____rounds
Definition
9 acetyal coA (the 2 carbon chunks)
8 rounds= 8 NADH, 8FADH2 total
Term
photosynthesis rxn
Definition
6CO2 +6H20 -> C6H12O6 + 6O2
Term
light rxn occurs in
Definition
thylakoid membrane
Term
dark rxn occurs in
Definition
stroma
Term
chlorophylls absorb ___light (nm)
Definition
red 600-700nm and blue 400-500nm
Term
____ chlorophyll molecules pass light energy to reaction centers
Definition
antennae
Term
photophosphorylation
Definition
photosystems are part of an ETC that creates a proton gradient that power ATP synthase
Term
light rxn:
Definition
H2O -> O2, NADP+ -> NADPH
Term
Dark rxn
Definition
CO2 -> carbohydrate
Term
dark rxn/calvin cycle net
Definition
3 CO2 +H20 -> glyceraldehyde-3-phosphate(3C)+9ADP +6NADP+
Term
what enzyme starts the dark rxn?
Definition
RuBisCo
Term
how many times do you run the dark rxn to make 1 glyceraldehyde-3-phosphate? fueled by?
Definition
3 times fueled by the light rxn's ATP
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