Cell Transport

Front

What is diffusion?

Back

The movement of particles from an area of high concentration to an area of low concentration.

Front

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

Back

WITH

Front

Which example describes diffusion?

Back

Baking cookies and smelling them throughout the house.

Front

What is exocytosis?

Back

When a cell forms a vesicle around unwanted particles and expels it OUT of the cell.

Front

What is a hypertonic environment?

Back

Too little water in the cell will cause the cell to shrink - the percentage of water is lower outside the cell than inside the cell.

Front

What is osmosis?

Back

The movement of water molecules across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is active transport?

Back

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

Front

What is facilitated diffusion?

Back

The process of passive transport of molecules across a cell membrane via specific transmembrane integral proteins.

Front

What is the role of the cell membrane?

Back

To regulate what enters and exits the cell, maintaining homeostasis.

Front

What happens to a cell in a hypotonic solution?

Back

The cell will swell as water enters, potentially leading to bursting.