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

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

Tags

NGSS.MS-LS2-3

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

Tags

NGSS.HS-PS1-5

The picture below is an example of _________________.

• osmosis

• isotonic

• diffusion

• active transport

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

How does the concentration gradient affect diffusion?

• The greater the concentration difference the faster the rate
• The smaller the concentration difference the faster the rate
• The greater the concentration the slower the rate

How does surface area affect the rate of diffusion?

• Greater the surface area the slower the rate 
• Greater the surface area the faster the rate
• Smaller the surface area the faster the rate
• Surface area does not affect diffusion

How does increasing temperature affect the rate of diffusion?

• molecules move in orderly manner

• Gives molecules more energy increasing the rate

• Takes energy away from molecules slowing down the rate

• collision of molecules slows down

Tags

NGSS.MS-PS1-4