PLANT STRUCTURE QUIZ

Which molecule serves as a carrier of fatty acids in mitochondria?

Dolichol

Acetyl-CoA

Malonyl-CoA

Carnitine

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Which is not true about a photon?

It is a packet of light energy

It is trapped by photosynthetic unit

It donates electron to reduce carbon dioxide to glucose

The shorter the wavelength, the greater the energy of the photons

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A cell without cell wall is called

apoplast

none of these

protoplast

symplast

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Chemical energy is supplied to eukaryotic cells by

mitochondria only

mitochondria and ribosomes

mitochondria and chloroplasts

chloroplasts and golgi complexes

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Tonoplast is a membrane around

mitochondria

cytoplasm

vacuole

nucleus

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Which of the following is not an electron carrier class in the electron transport chain?

Flavoproteins

Iron - sulfur proteins

Cytochrome c oxidase

Cytochromes

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Mitochondria can be expected most numerous in

muscle cells

none of these

green cells

red blood cells

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Which of the following functional groups would make a carbon-based compound the least polar?

Methyl

Phosphate

Carboxyl

Amino

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

the outer mitochondrial membrane

the nuclear membrane

the cell's plasma membrane

some bacterial plasma membranes

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Why do some redox reactions in cells result in the transfer of electrons from a reductant with a higher standard redox potential to an oxidant with a lower standard redox potential?

Electrons always go from reductants with high redox potentials to oxidants with low redox potentials

The rules governing oxidation and reduction apply only in vitro, and not in vivo

Redox potentials are defined under standard conditions, and cellular conditions are typically not standard conditions

None of these

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