Microbial Metabolism
In the passive diffusion, solute molecules cross the membrane as a result of

concentration difference
pressure difference
ionic difference
all of these

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Microbial Metabolism
Dolichol phosphate is

a chaperone used in protein folding
the anchor on which sugars assemble before transfer to proteins
a product of phospholipase C activation
a complex lipid involved in docking vesicles with the plasma membrane

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