Plant Structure
Which of the following observations is not used as evidence to support the concept of endosymbiotic origin of chloroplasts and mitochondria?

Both have their own DNA
Both strongly resemble prokaryotes, especially in size
Both can live and function independently of the cell
Both have their own ribosomes

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Plant Structure
Cellular metabolism is an example of

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

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Plant Structure
Any system that is not at equilibrium

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

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