bich 2 exam 2 Flashcards
draw the steps of gluceogenesis
glucose 6P –> glucose by glucose-6-phosphatase
fructose 1,6 bisphosphate –> fructose 6-phophate by fructose 1,6-bisphosphatase
pyruvate –> oxaloacetate –> phosphoenolpyruvate by pyruvate carboxylase and PEP carboxykinase
draw glycogen synthesis
answer on doc
draw glycogen catabolism
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draw TCA cycle
answer on doc
draw oxaloacetate
answer on doc
draw citrate
answer on doc
draw isocitrate
answer on doc
draw alpha-ketoglutarate
answer on doc
draw succinyl-coA
answer on doc
draw succinate
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draw fumarate
answer on doc
draw malate
answer on doc
draw pyruvate dehydrogenase reaction
answer on doc under TCA
What is the purpose of the glyoxylate cycle?
It short cuts the TCA cycle so no carbon is lost as CO2.
ANABOLIC AND CATABOLIC. Produces NADH and FADH2 to power electron transport
intermediate for biosynthesis
Glyoxylate pathway in plants:
occurs in glyoxysome
seeds oxidize fatty acids to acetylCoA and its used to glyoxylate pathways to support growth
glyoxylate shunt cannot use photosynthesis yet
draw the glyoxylate pathway
isocitrate –> glyoxylate + succinate… glyoxylate –> malate (proceeds through TCA)
what molecules can go in and out of the mitochondria?
pyruvate, citrate, malate
what cannot go in and out of the mitochondria?
Acetyl CoA and oxaloacetate
What are anaplerotic reactions?
reactions that fill up or replenish TCA intermediates
TCA cycle is regulated by what?
NAD+/NADH, Acetyl CoA, ADP/ATP