mitochondria
this is where oxidative phosphorylation occurs in eukaryotes
respiration
an atp generating process in which an inorganic substance such as oxygen serves as the ultimate electron acceptor
porins
the permeability of the outer mitochondrial membrane is primarily due to the presence of these substances
coenzyme Q
these enzymes play a key role in apoptosis
this enzyme catalyzes the reduction of O2
cytochrome c oxidase
iron sulfur clusters
this prosthetic group is present in complex I, II, and III of electron transport
succinate dehydrogenase
this citric acid cycle enzyme is also part of an electron transport complex
caspase
this is the name given to the hypothesis proposed by peter mitchell to explain how ATP synthesis is coupled to electron transport
ATP-ADP translocase
atractyloside inhibits this mitochondrial protein
Malate- aspartate shuttle
this is a process by which cytoplasmic NADH can be re-oxidized by O2 using the electron transport system
proton motive force
the unequal distribution of H across the inner mitochondrial membrane creates a _____
FMN
in the initial step of complex I, two high potential electrons are transferred from NADS to the _____ prosthetic group of this complex
C
Cytochrome ____ is the only water soluble cyctochrom of the electron transport chain
Cytochrome C
carries electrons from complex III to IV
superoxide
the transfer of a single elctron to O2 forms the reactive ____ ion
ATP synthase
a molecular assembly in the inner mitochondrial membrane that carries out the synthesis of ATP
dihydroxyacetone phosphate
in the glycerol phosphate shuttle, cytoplasmic glycerol phosphate dehydrogenase uses cytoplasmic NADH to reduce _______ to glycerol 3 phosphate
ADP
acceptor control of oxidative phophorylation means that the rate of respiration depends upon the level of _____
carbon monoxide
a poison becuase it blocks the flow of elctrons from cytochrome c to oxygen
what type of gradient is critical to ATP formation by oxidative phophorylation?
pH and proton
When glucose it totally oxidized to CO2 and H2O, how many ATP molecules are made by oxidative phophorylation relative to the maximum yield?
26 out of 30
What is the chemical effect of oligomycin on aerobic metabolism
oligomycin blocks the proton transfer through F of ATP synthase and therefore blocks the phosphorylation of ADP to for ATP
which of the following does not participate in, nor is a component of, the electron transport chain?
lipoic acid
in prokaryotes the site of ATP synthesizing machinery is
the cytoplasmic membrane
Electron flow down the elctron transport chain leads to____
transport of protons across the inner mitochondrial membrane from inside the matrix to the intermembrane space
which electron carrier is a derivative of quione and has an isporenoid tail
coenzyme Q
which of the following does not pump protons
complex II
The energy for ATP synthesis is generated by th emovement of protons from the _____ side of the inner mitochondrial membrane establishing a gradient
matrix; pH
what is a cytochrome
a protein that transfers electrons, and that also contains a heme prosthetic group
in the Rieske center, the iron sulfur center is coordinated to the amino acid
His
what is the net ATP obtained from one cytoplasmic NADH when it is reoxidized by the electron transport chain using the glycerol 3 phosphate shuttle?
1.5
in the malate aspartate shuttle, electrons from NADH are transferred to ____, forming malate
oxaloacetate