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

mitochondria are surrounded by a semi permeable membrane
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

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Plant Structure
Which is not true about a photon?

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

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