1.3 Diffusion

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

Tags

NGSS.MS-LS1-2

Passive Transport uses ____ energy

• no

• a lot of

• a little bit of

• some

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

The condition in which all acting influences are balanced.

• equilibrium

• dynamic 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

• [high] --> [low]

Tags

NGSS.HS-PS1-5