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: -Osmosis is a special type of diffusion, namely the diffusion of water across a semipermeable membrane.

Detailed explanation-3: -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.

Detailed explanation-4: -Cell membranes are an example of semi-permeable membranes. Cell membranes allow small molecules such as oxygen, water carbon dioxide and glucose to pass through, but do not allow larger molecules like sucrose, proteins and starch to enter the cell directly.

Detailed explanation-5: -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.