Osmosis is
a) the movement of water across selectively permeable membranes.
b) the active transport of water across membranes.
c) the unidirectional diffusion of water across membranes.
d) a process that is unaffected by solute concentrations inside cells.
e) a process that requires energy.

A

Explanation: the movement of water must be through a semipermeable membrane thus the membrane is selective

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what the squwock

explanation:

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.