Diffusion

Diffusion is the movement of molecules from an area of _____ concentration to an ______ concentration

• High, low

• Low, high

• Low, low

• High, high

Diffusion occurs only in solids

• True

• False

What is a solute?

• A substance dissolved in another substance

• the substance doing the dissolving

What is a solvent

• The one doing the dissolving

• The substance dissoved in another substance

How long does diffusion last?

• Until the concentration of particles in the system is equal

• (Select this answer and I swear i'll make it harder for you in the assessment task)

• 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

What happens to the concentration of carbon dioxide in you cells when you exercise

• Increase

• Decrease

• Remain constant

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

What hapens to the concentration of oxygen in the body cells when you exercise?

• Increase

• Decrease

• Remain constant

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

How does the body remove carbon dioxide from the cells?

• The body cells converts carbon dioxide into carbon monoxide

• The body cells don't expel the waste, they store them for future use

• The body cells expel the carbon dioxide through the use of the nucleus

• The carbon dioide diffuses out of the body cells and into the bloodstream due to differences in the concentration gradient

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 happens to the coffee particles when coffee is added to hot water?

• They sink to the bottom of the cup

• They spread out

• They clump together

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4