Plant Structure
Any system that is not at equilibrium

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

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

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

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