cellular respiration Flashcards
what macromolecule is the primary source of energy for animals
carbohydrates (glucose)
what does glucose get broken down into
2 pyruvate molecules
before entering the citric acid cycle what does the pyruvate get converted into
Acetyl CoA
The passage of electrons down the electron transport chain is used to what
pump H+ to the inner membrane space creating a proton gradient
what is the final electron acceptor in the ETC
oxygen
without oxygen present what happens
glycolysis can still continue but the citric acid cycle and ETC will both stop
what happens to anaerobic respiration without oxygen
it switches to fermentation
what type of fermentation is used in the animal pathway
lactic acid fermentation
what type of fermentation is used in the bacteria and yeast pathway
alcoholic fermentation
what are NAH+ and FAD+ reduced to
NADH and FADH2
NADH and FADH2 are what
electron carriers meaning they carry electrons to the ETC
What membrane are they pumping H+ across
inner mitochondrial membrane
Why is NADH able to pump more H+ than FADH2
because its electrons are at a lower energy level
