Diffusion Osmosis Active Transport

Water moves across membranes to where there is less water

What does Active Transport require?

• energy

• cells

• transport proteins

• membrane

What type of molecules does Active Transport use?

• small

• meduim

• huge

• large

• tiny

Tags

NGSS.MS-PS1-1

Molecules move from area of low concentration to area of high concentration is __________.

Molecules move from area of high concentration to area of low concentration.

high amount of solutes

• Hypertonic Solution

• Hypotonic Solution

• Isotonic Solution

What indicates that osmosis has occurred in a dialysis tubing experiment?

• The size of the tubing

• A change in color of the solution

• The temperature of the solution

• A change in the water level outside the tubing

What is diffusion?

• The movement of water molecules only

• The process of osmosis

• The active transport of ions

• The spreading out of particles in a solution or gas

What is a concentration gradient?

• A difference in concentration between two regions

• The movement of particles from low to high concentration

• The amount of solute in a solution

• The process of diffusion

True or False: Diffusion is an active process.

• False

• True

• It depends on the temperature

• Only in living organisms