Diffusion and Facilitated Diffusion

Diffusion & Facilitated Diffusion are both __________ transport.

• Passive

• Active

• Easy

• Free

_____________ is the free movement of particles across the membrane down/ along the concentration gradient

• diffusion

• facilitated diffusion

• active transport

• fusion

Passive Transport is the movement of particles _________ the concentration gradient.

• down

• against

• opposing

• throughout

What is the movement of particles with the concentration gradient using protein "helpers"?

• diffusion

• facilitated diffusion

• active transport

• enzymatic reactions

Facilitated diffusion needs what to get particles from one side of the membrane to the other?

• a membrane-spanning protein

• a surface protein

• a phospholipid

• a carbohydrate

The movement of a substance across a membrane against its concentration gradient requires energy and is called.

• Diffusion

• Osmosis

• Active Transport

• Passive Transport

Which way will the particles diffuse?

• up

• down

• no movement

• right

Tags

NGSS.HS-PS1-5

The condition in which all acting influences are balanced.

• equilibrium

• net movement

Tags

NGSS.HS-PS1-6

The number of molecules moving one direction minus the number of molecules moving in the other direction.

• equilibrium

• dynamic equilibrium

• net movement

occurs when the concentration of particles is higher in one area than another.

• concentration gradient

• concentration

Tags

NGSS.HS-PS1-5