PLANT STRUCTURE QUIZ

"The universe tends towards maximum disorder" is stated by

third law of thermodynamics

second law of thermodynamics

first law of thermodynamics

None of these

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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?

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

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Chemical energy is supplied to eukaryotic cells by

mitochondria and chloroplasts

chloroplasts and golgi complexes

mitochondria only

mitochondria and ribosomes

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The cellular organelle associated with photosynthesis is the

golgi complex

mitochondrion

lysosome

chloroplast

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Which of the following functional groups would make a carbon-based compound the least polar?

Carboxyl

Amino

Methyl

Phosphate

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Which cell type is likely to have the most mitochondria?

Adipose cells

Liver cells

Fast-twitch muscle

Slow-twitch muscle

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Which of the following can be found as a part of the mitochondrial matrix?

All of these

Ribosomes

Enzymes

DNA

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The composition of the inner mitochondrial membrane is most like that of

the outer mitochondrial membrane

some bacterial plasma membranes

the nuclear membrane

the cell's plasma membrane

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Cellular metabolism is an example of

a series of reactions occurring under standard conditions

a series of reactions that defy the second law of thermodynamics

steady-state metabolism

equilibrium metabolism

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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?

Ubiquinol (UQH2)

Cytochrome c red

Cytochrome c oxidase

Cytochrome c peroxidase

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