Plant Structure
Chemical energy is supplied to eukaryotic cells by

mitochondria and chloroplasts
mitochondria only
mitochondria and ribosomes
chloroplasts and golgi complexes

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Plant Structure
Which of the following statements about the outer mitochondrial membrane is not true?

The outer membrane contains porins
The outer membrane is impermeable to hydrogen ions
The outer membrane is highly permeable to substances of small molecular weight
The outer membrane is about 50% lipid and 50% protein by weight

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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 donates electron to reduce carbon dioxide to glucose
It is trapped by photosynthetic unit
It is a packet of light energy

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