Plant Structure
Which cell type is likely to have the most mitochondria?

Slow-twitch muscle
Liver cells
Fast-twitch muscle
Adipose cells

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Plant Structure
The mitochondria were known in the nineteenth century to be osmotically active on the basis of evidence that

the mitochondrial matrix is hypertonic to the cellular cytoplasm
mitochondria were derived from a symbiotic bacterium
the mitochondrial matrix is hypotonic to the cellular cytoplasm
mitochondria are surrounded by a semi permeable membrane

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