Plant Structure
In plant cells, which of the following is not a function of the large central vacuoles of plant cells?

Waste storage water content
Storage of food
Contractile regulation of
Support

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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
a series of reactions occurring under standard conditions
equilibrium metabolism

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

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

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

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