cellular respiration 2.2 Flashcards
(23 cards)
what is glycolosys and where does it take place
the breakdown of glucose to pyruvate in the cytoplasm
what is the energy investment and net gain of glycolosis
2 atp invested
4 atp gained
net gain 2 atp
what is the next step after glycolosys if oxygen is avaliable
cutric acid cycle
what is puruvate broken down into
acetyle which jouns with coenzyme a to form acetyle co a
what does acetyle co a join with and what does it make
oxeloacitate to form citrate
what does the colitric acid cycle release
atp and carbon dioxide
where does the citric acud cycle occur
central matrix of mitochondria
what enzyme removes h ions and electrons
dehydrogenase
what is formed when nad joins with h ions and electrons
nadh
where are h ions and electrons passed onto by nadh
the electron transport chain
where does the etc take place
the inner membrane of the mitochondria
what is the etc
a series of carrier proteins attached to the inner mitochondrial membrane
how does the etc work
electrons are past allong the etc giving energy to allow the hydrogen ions to be pumped across the membrane
what is the enzyme h ions pass through to sinthesise atp
atp sinthase
what is the last exeptor of h ions and electrons
oxygen forming water
what happens after glycolosys in the absence of oxygen
fermentation takes place in the cytoplasm
what is pyruvate converted into in animal cells
lactate
what is pyruvate converted into in plant cells
ethanol and carbon dioxide
is fermentation in animals reversable
yes
is fermentation in plants reversable
no
is there more or less atl produced during fermentation
much less
what is atp used for
to transfer energy from cellular respiration to other cell processes which require energy
how many atp are produced in the etc
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