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
Support
Storage of food
Contractile regulation of

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Plant Structure
Cellular metabolism is an example of

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

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

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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 imported from the cytoplasm
All mitochondrial proteins are coded for and synthesized in the mitochondria

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