AP BIOLOGY

Detailed explanation-1: -in the case of osmosis, the movement of solvent is through a semi-permeable membrane which is permeable only to water molecules. Hence the answer is osmosis.

Detailed explanation-2: -A phenomenon called endosmosis takes place when raisins are placed in water for few hours. When raisins are soaked in water, they swell. All this is due to the process of osmosis. The water molecules pass the cell membrane of the raisins and the raisins thus get swollen.

Detailed explanation-3: -Osmosis And Diffusion Examples To see an easy demonstration of osmosis, soak gummy candies in water. The gel of the candies acts as a semipermeable membrane. Examples of Diffusion: Examples of diffusion include perfume filling a whole room and the movement of small molecules across a cell membrane.

Detailed explanation-4: -The primary differentiating factor between the two systems is the medium in which they are employed. Osmosis can only function in a liquid medium, but diffusion can occur in all three mediums (solid, liquid and gas). Furthermore, osmosis requires a semi-permeable membrane, while diffusion does not.

Detailed explanation-5: -An example is an active transport involving the sodium-potassium pump. It is a transport system in a biological membrane where three Na+ ions are taken out while two K+ ions are taken into the cell against their respective concentration gradients.