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?

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

None of these

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

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

None of these

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

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

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Plant Structure
"The universe tends towards maximum disorder" is stated by

None of these

second law of thermodynamics

third law of thermodynamics

first law of thermodynamics

None of these

second law of thermodynamics

third law of thermodynamics

first law of thermodynamics

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Plant Structure
Mitochondria can be expected most numerous in

muscle cells

red blood cells

none of these

green cells

muscle cells

red blood cells

none of these

green cells

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Plant Structure
Cellular organelles are embedded in the

cristae

cytosol

endoplasmic reticulum

microtubules

cristae

cytosol

endoplasmic reticulum

microtubules

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Plant Structure
Which of the following experimental results does not support Mitchell's chemiosmosis theory?

Addition of dinitrophenol to isolated mitochondria during electron transport was shown to inhibit acidification of the medium

An artificial proton gradient across the inner mitochondrial membrane drives ATP synthesis in the absence of electron transport

Addition of dinitrophenol to isolated mitochondria was shown to inhibit electron transport, but had no effect on ATP synthesis

Electron transport in isolated mitochondria was shown to result in acidification of the medium

Addition of dinitrophenol to isolated mitochondria during electron transport was shown to inhibit acidification of the medium

An artificial proton gradient across the inner mitochondrial membrane drives ATP synthesis in the absence of electron transport

Addition of dinitrophenol to isolated mitochondria was shown to inhibit electron transport, but had no effect on ATP synthesis

Electron transport in isolated mitochondria was shown to result in acidification of the medium

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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 are surrounded by a semi permeable membrane

mitochondria were derived from a symbiotic bacterium

the mitochondrial matrix is hypotonic to the cellular cytoplasm

the mitochondrial matrix is hypertonic to the cellular cytoplasm

mitochondria are surrounded by a semi permeable membrane

mitochondria were derived from a symbiotic bacterium

the mitochondrial matrix is hypotonic to the cellular cytoplasm

the mitochondrial matrix is hypertonic to the cellular cytoplasm

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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 universe tends towards maximum disorder" is stated by

Plant Structure Mitochondria can be expected most numerous in

Plant Structure Cellular organelles are embedded in the

Plant Structure Which of the following experimental results does not support Mitchell's chemiosmosis theory?

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

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 universe tends towards maximum disorder" is stated by

Plant Structure
Mitochondria can be expected most numerous in

Plant Structure
Cellular organelles are embedded in the

Plant Structure
Which of the following experimental results does not support Mitchell's chemiosmosis theory?

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