Diffusion of Particles

Diffusion & Facilitated Diffusion are both __________ transport.

• Passive

• Active

• Easy

• Free

Passive Transport is the movement of particles across the membrane from an area of [ ___ ] to an area of [ ___ ]

• high to low

• low to high

• low to low

• high to high

Passive Transport uses ____ energy

• no

• a lot of

• a little bit of

• some

_____________ is the free movement of particles across the membrane with the concentration gradient

• diffusion

• facilitated diffusion

• active transport

• fusion

Tags

NGSS.HS-LS2-3

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

• with

• against

• opposing

• throughout

An example of diffusion is

• CO₂ and O₂ exchange in the lungs

• Glucose transport

• Na⁺ / K⁺ Pumps

• Exocytosis

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

• diffusion

• facilitated diffusion

• active transport

• enzymatic reactions

An example of facilitated diffusion is

• CO₂ and O₂ exchange in the lungs

• Glucose transport

• Na⁺ / K⁺ Pumps

• Endocytosis

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

What is a difference between diffusion and facilitated diffusion?

• movement of particles from [high] to [low]

• a protein "helper"

• movement of particles from [low] to [high]

• energy