Plant Structure
The composition of the inner mitochondrial membrane is most like that of

some bacterial plasma membranes
the outer mitochondrial membrane
the cell's plasma membrane
the nuclear membrane

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

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Plant Structure
Which of the following experimental results does not support Mitchell's chemiosmosis theory?

Addition of dinitrophenol to isolated mitochondria was shown to inhibit electron transport, but had no effect on ATP synthesis
Electron transport in isolated mitochondria was shown to result in acidification of the medium
An artificial proton gradient across the inner mitochondrial membrane drives ATP synthesis in the absence of electron transport
Addition of dinitrophenol to isolated mitochondria during electron transport was shown to inhibit acidification of the medium

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