AP BIOLOGY

Detailed explanation-1: -Therefore, for osmosis to occur, the membrane must be permeable to water, but impermeable to the solute, and the concentration of the solute must be different on the two sides of the membrane.

Detailed explanation-2: -Osmosis only occurs when a semi-permeable membrane is present, but diffusion can happen whether or not it is present.

Detailed explanation-3: -The two conditions that must be present for osmosis to happen are having a selectively-permeable membrane and differing concentrations of solute on either side of the membrane. Osmosis occurs across membranes that are impermeable to solute but are permeable to water.

Detailed explanation-4: -Osmosis require a semipermeable membrane because semi-permeable membrane only allows solvent material to pass from the source to the external environment or vice versa until the equilibrium in both environments is reached.

Detailed explanation-5: -In osmosis, water molecules pass through a semi-permeable membrane.