Sections 5.6-5.8

Question 1

Diffusion

Answer 1

• the spontaneous spreading of molecules or ions, and it is an essential way in which substances move into, through, and out of cells

Question 2

What does the speed of diffusion depend on?

Answer 2

Size, temperature, concentration, charge, and pressure.

Question 3

What does the speed of diffusion depend on? Size

Answer 3

It takes more energy to move a large object than it does to move a small one. Thus, smaller molecules diffuse more quickly than the larger ones.

Question 4

What does the speed of diffusion depend on?
Temperature

Question 6

Diffusion

Answer 6

the spontaneous spreading of molecules or ions, and it’s an essential way in which substances move into, through, and out of cells

Question 7

The speed at which diffusion occurs depends on what factors?

Answer 7

Size, temperature, concentration, charge, and pressure.

Question 8

The speed at which diffusion occurs depends on what factors? Size

Answer 8

It takes more energy to move a large object than it does to move a small one. Thus, smaller molecules diffuse faster than larger ones.

Question 9

The speed at which diffusion occurs depends on what factors? Temperature

Answer 9

Atoms and molecules “jiggle” faster at higher temperatures so they collide more often. Thus, the higher the temperature, the faster the rate of diffusion.

Question 10

The speed at which diffusion occurs depends on what factors? Concentration

Answer 10

A difference in solute concentration between adjacent regions of a solution is called a concentration gradient. Solutes tend to diffuse “down” their concentration gradient, from a region of higher concentration to one of lower consentration