Diffusion

Diffusion occurs only in gases

• True

• False

How do the particles move in diffusion?

• From a region of low concentration to a region of high concentration

• From a region of high concentration to a region of low concentration

• From a region of low concentration to a region of low concentration

• From a region of high concentration to a region of high concentration

The movement of particles is __________, resulting in the particles being spread throughout the container

• Structured

• In a straight line

• Random

• In curved, way motions

Tags

NGSS.MS-PS1-4

What does a 'region with high concentration' mean?

• An area with a SMALL number of particles

• An area with a LARGE number of particles

• An area with an UNEVEN number of particles

• An area with no particles

How long does diffusion last?

• Until the concentration of particles in the system is equal

• Until a region in the system has a smaller concentration of particles than the other

• Until a region in the system has a greater concentration of particles than the other

• Until the particles disappear from the system

Tags

NGSS.MS-PS1-4

Where is there a low concentration of dye?

• at the bottom of cup

• in the color

• at the top of cup

• no concenteraion gradient

Tags

NGSS.MS-PS1-2

There are 24 molecules inside this cell. AFTER diffusion, how many molecules would be inside and how many would be outside?

• There would be 12 inside and 12 outside

• There would be 0 inside and 24 outside

• The cell will stay the same with 24 inside

• There will be 20 inside and 4 outside

Tags

NGSS.MS-LS1-2

Why does the tea move out of the tea bag and into the water?

• The warm water forces it out of the tea bag

• There is equal concentration of water and tea

• There is a higher concentration of tea in the bag and less in the water

• There is a lower concentration of tea in the bag and more in the water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which diagram best shows the end result of diffusion?

• F
• G
• H
• J

Tags

NGSS.MS-PS1-4

Why is diffusion so important in biology?

• It's the basic power source for most types of cells

• It allows substances to move across cell membranes

• It prevents toxins from entering our bodies

• Without diffusion, cell division could not take place