cellular respiration Flashcards
all cells run on ___
chemical energy
how is the energy stored in food measured?
calories
why do cells release energy?
to build ATP
what are the 3 steps of cellular respiration in order?
glycolysis, Krebs, ETC
cellular respiration
process process by which glucose is broken down into energy that can be used to produce ATP
where does cellular respiration occur?
cytoplasm and mitochondria
where does glycolysis occur?
cytoplasm
where does kreb cycle occur?
matrix of mitochondria
where does ETC occur?
mitochondria
what 2 steps require oxygen?
kreb and ETC
aerobic
with oxygen
anaerobic
without oxygen
kreb cycle + ETC produce how many ATP?
34-36
does glycolysis require oxygen?
no
how much ATP does glycolysis produce?
2 ATP
glycolysis
sugar splitting
what is glycolysis broken into?
2 pyruvate
is NAD+ empty or full?
empty
is NADPH empty or full
full
kreb cycle
breaks down pyruvate into 3 CO2 molecules
the kreb cycle uses its energy to produce what?
4 NADH, 1 FADH and 1 ATP
how much ATP does the kreb cycle produce?
2 ATP
what is NADPH and FADH2?
high energy electrons In the ETC
how do H+ ions flow back into the matrix
ATP synthesis
