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

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Plant Structure
Any system that is not at equilibrium

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

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Plant Structure
Which of the following statements about mitochondrial proteins is true?

All mitochondrial proteins are coded for and synthesized in the mitochondria
All mitochondrial proteins are imported from the cytoplasm
Some mitochondrial proteins are coded for and synthesized in the mitochondria and others
Mitochondrial proteins arise from other mitochondrial proteins

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