AP BIOLOGY

Detailed explanation-1: -You have a cell, with a semi permeable membrane and a 1.5% potassium concentration. You put it into a solution of 2% potassium. What do you expect to see happen to the cell? The cell will shrink.

Detailed explanation-2: -If a cell (with no dye in it) is in a solution of 10% dye molecules and the dye can cross the cell’s membrane, what do you predict will happen to the dye? The alcohol will move into the cell.

Detailed explanation-3: -If a semipermeable membrane (one that is permeable to water but not a solute) separates pure water from water in which solute is dissolved, water molecules will diffuse across the membrane into the region of higher solute concentration.

Detailed explanation-4: -A cell placed into a hypotonic solution will swell and expand until it eventually burst through a process known as cytolysis. These three examples of different solute concentrations provide an illustration of the spectrum of water movement based on solute concentration through the process of osmosis.

Detailed explanation-5: -Osmosis is the movement of water across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration. Osmosis helps regulate the flow of water in and out of cells, which is crucial to their function.