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

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

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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 have their own DNA
Both can live and function independently of the cell

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Plant Structure
Which is not true about a photon?

It is a packet of light energy
The shorter the wavelength, the greater the energy of the photons
It donates electron to reduce carbon dioxide to glucose
It is trapped by photosynthetic unit

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