Plant Structure
Which of the following statements about the outer mitochondrial membrane is not true?

The outer membrane is about 50% lipid and 50% protein by weight
The outer membrane is impermeable to hydrogen ions
The outer membrane contains porins
The outer membrane is highly permeable to substances of small molecular weight

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Plant Structure
Any system that is not at 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
requires an enzyme to reach equilibrium

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Plant Structure
Cellular metabolism is an example of

steady-state metabolism
a series of reactions that defy the second law of thermodynamics
equilibrium metabolism
a series of reactions occurring under standard conditions

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