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

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Plant Structure
Cellular metabolism is an example of

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

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