Cell Transport

Front

What is cell transport?

Back

Cell transport refers to the movement of substances across the cell membrane, which can occur through various mechanisms such as diffusion, osmosis, and active transport.

Front

Define hypotonic solution.

Back

A hypotonic solution has a lower concentration of solutes compared to another solution, leading to the swelling of cells when placed in it.

Front

What happens to red blood cells in a hypotonic solution?

Back

Red blood cells swell and may burst due to the influx of water.

Front

Define hypertonic solution.

Back

A hypertonic solution has a higher concentration of solutes compared to another solution, causing cells to shrink when placed in it.

Front

What happens to red blood cells in a hypertonic solution?

Back

Red blood cells shrivel up due to the loss of water.

Front

Define isotonic solution.

Back

An isotonic solution has an equal concentration of solutes compared to another solution, resulting in no net movement of water into or out of the cell.

Front

What is dynamic equilibrium in the context of cell transport?

Back

Dynamic equilibrium occurs when the concentration of solutes is equal on both sides of the membrane, leading to balanced movement of substances.

Front

What is passive transport?

Back

Passive transport is the movement of molecules across the cell membrane without the use of energy, typically from areas of higher concentration to lower concentration.

Front

What is active transport?

Back

Active transport is the movement of molecules against their concentration gradient, from areas of lower concentration to higher concentration, requiring energy.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses protein channels to help move substances across the cell membrane.