Adv. Cell Membrane and Cell Transport

Front

In passive transport, substances move across the cell membrane ________ the concentration gradient.

Back

WITH

Front

The cell expanded in size to the point of lysing (bursting), which means it was placed in a ____ solution.

Back

Hypotonic

Front

Diffusion occurs when molecules ________.

Back

move from high to low concentration

Front

What is another term for 'selectively permeable'?

Back

semipermeable

Front

What is the movement of particles with the concentration gradient using protein 'helpers'?

Back

facilitated diffusion

Front

Define passive transport.

Back

The movement of substances across a cell membrane without the use of energy, typically along the concentration gradient.

Front

What is active transport?

Back

The movement of substances against the concentration gradient, requiring energy (ATP).

Front

Explain osmosis.

Back

The diffusion of water molecules across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is a hypertonic solution?

Back

A solution with a higher concentration of solutes compared to another solution, causing cells to lose water.

Front

What is an isotonic solution?

Back

A solution with the same concentration of solutes as another solution, resulting in no net movement of water.