Topic 3 Transport

What types of organisms have a cell wall? plants bacteria protists fungi

Diffusion moves molecules form a ___high_ concentration to a ___low__ concentration.

True or false: after equilibrium is reached, molecules do not move anymore.

In a hypotonic solution, there is a low solute concentration outside a cell. Water moves _into_the cell.

Circle one: Who does better in a hypotonic solution? PLANTS ANIMALS

In a hypertonic solution, there is a high solute concentration outside a cell. Water moves __out of_____ the cell.

In an isotonic solution, there is an ___equal______ solute concentration outside and inside a cell

Circle one: Who does better in an isotonic solution? PLANTS ANIMALS

Facilitated diffusion needs the help of a __protein________ to move large/charged molecules across a cell membrane.

What type of molecule is the “facilitator” in facilitated diffusion What type of molecule is the “facilitator” in facilitated diffusion? ______ proteins___

The only type of cellular transport to go AGAINST the concentration gradient is called __active transport_____.

What important energy molecules allows active transport to happen What important energy molecules allows active transport to happen? ____ATP____

What happens to the shape of a carrier protein when ATP binds to it What happens to the shape of a carrier protein when ATP binds to it? __it changes___.

What happens to the shape of A protein when potassium ions bind to it? It changes shape to allow potassium into the cell

In the Na+/ K+ pump, ___ ions of sodium go out through the protein first. Then, ___ ions of potassium go in. 3,2