Plant Structure
If complex III were incorporated into an artificial lipid vesicle in order to demonstrate it's proton translocating ability in isolation, which of the following would be an appropriate electron donor?

Cytochrome c peroxidase
Cytochrome c oxidase
Cytochrome c red
Ubiquinol (UQH2)

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Plant Structure
Any system that is not at equilibrium

requires an enzyme to reach equilibrium
is kinetically unstable, although it may be thermodynamically stable
is rushing toward equilibrium at a very rapid rate
is thermodynamically unstable, although it may be kinetically stable

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Plant Structure
The mitochondria were known in the nineteenth century to be osmotically active on the basis of evidence that

the mitochondrial matrix is hypertonic to the cellular cytoplasm
mitochondria were derived from a symbiotic bacterium
mitochondria are surrounded by a semi permeable membrane
the mitochondrial matrix is hypotonic to the cellular cytoplasm

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