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

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Plant Structure
Which is not true about a photon?

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

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

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

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