Cell Transport

A hypotonic solution is one where the concentration of solutes outside the cell is lower than inside the cell, causing water to flow into the cell, potentially leading to swelling or bursting.

Diffusion is the movement of particles from an area of high concentration to an area of low concentration until equilibrium is reached.

Active transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy (ATP) to do so.

Selectively permeable refers to a property of cell membranes that allows some substances to pass through while blocking others.

Facilitated diffusion is the process of transporting molecules across a cell membrane via a carrier protein from an area of high concentration to an area of low concentration without the use of energy.

Osmosis is the diffusion of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their concentration gradient.

A hypertonic solution is one where the concentration of solutes outside the cell is higher than inside the cell, causing water to flow out of the cell, leading to shrinkage.

Carrier proteins assist in the transport of substances across the cell membrane, particularly in facilitated diffusion and active transport.

Equilibrium is the state where the concentration of a substance is equal on both sides of a membrane, resulting in no net movement of that substance.