oxidative phosphorylation

Cards (18)

what enters OP?
NAD, ADP+Pi, oxygen
what exits OP?
water, ATP, NAD
where does it occur?
mitochondrial membrane, specifically on the cristae
what is the role of cristae?
to increase the SA
what does reduced NAD lose at the beginning of the electron transfer chain?
electrons
where do the electrons lost from reduced NAD go?
to the transport chain
what is special about the transfer chain?
energy levels decrease down the chain
what is released as the electrons travel down the chain?
energy, some heat
what is the energy used for when it is lost?
to pump protons across the mitochondrial membrane to the intermembrane space
what does the pumping of protons set up?
a concentration gradient
where is the concentration of protons higher?
in the intermembrane space
where is the concentration of protons lower?
the matrix
where do the protons diffuse to?
the matrix
what do the protons diffuse through?
a protein channel, associated with ATP synthase
what is lost when protons diffuse through the protein channels?
energy, which is used to synthesise ADP+Pi to ATP
what happens at the end of the electron transfer chain?
the terminal electron acceptor combines with the proton and electron to make water
what is the terminal electron acceptor?
oxygen
how much ATP is made?
30ATP