Why do some redox reactions in cells result in the transfer of electrons from a reductant with a higher standard redox potential to an oxidant with a lower standard redox potential?

Plant Structure
Why do some redox reactions in cells result in the transfer of electrons from a reductant with a higher standard redox potential to an oxidant with a lower standard redox potential?

None of these

The rules governing oxidation and reduction apply only in vitro, and not in vivo

Electrons always go from reductants with high redox potentials to oxidants with low redox potentials

Redox potentials are defined under standard conditions, and cellular conditions are typically not standard conditions

None of these

The rules governing oxidation and reduction apply only in vitro, and not in vivo

Electrons always go from reductants with high redox potentials to oxidants with low redox potentials

Redox potentials are defined under standard conditions, and cellular conditions are typically not standard conditions

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

mitochondria were derived from a symbiotic bacterium

mitochondria are surrounded by a semi permeable membrane

the mitochondrial matrix is hypotonic to the cellular cytoplasm

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

the mitochondrial matrix is hypertonic to the cellular cytoplasm

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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

Ubiquinol (UQH2)

Cytochrome c red

Cytochrome c peroxidase

Cytochrome c oxidase

Ubiquinol (UQH2)

Cytochrome c red

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Plant Structure
The cellular organelle associated with secretion is the

golgi complex

lysosome

mitochondrion

ribosome

golgi complex

lysosome

mitochondrion

ribosome

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Plant Structure
Which cell type is likely to have the most mitochondria?

Slow-twitch muscle

Liver cells

Fast-twitch muscle

Adipose cells

Slow-twitch muscle

Liver cells

Fast-twitch muscle

Adipose cells

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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 thermodynamically unstable, although it may be kinetically stable

is rushing toward equilibrium at a very rapid rate

requires an enzyme to reach equilibrium

is kinetically unstable, although it may be thermodynamically stable

is thermodynamically unstable, although it may be kinetically stable

is rushing toward equilibrium at a very rapid rate

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Plant Structure

Plant Structure Why do some redox reactions in cells result in the transfer of electrons from a reductant with a higher standard redox potential to an oxidant with a lower standard redox potential?

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

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?

Plant Structure The cellular organelle associated with secretion is the

Plant Structure Which cell type is likely to have the most mitochondria?

Plant Structure Any system that is not at equilibrium

Plant Structure
Why do some redox reactions in cells result in the transfer of electrons from a reductant with a higher standard redox potential to an oxidant with a lower standard redox potential?

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

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?

Plant Structure
The cellular organelle associated with secretion is the

Plant Structure
Which cell type is likely to have the most mitochondria?

Plant Structure
Any system that is not at equilibrium