Chapter 5.1 Passive Transport

What is diffusion?

• when molecules move from a low concentration to a high concentration 
• when molecules move from a high concentration to a low concentration.
• no movement 
• molecules move everywhere

Tags

NGSS.MS-PS1-4

Osmosis

• diffusion of water molecules through a semi-permeable mebrane from an area of low concentration to an area of high concentration
• the diffusion of particles from an area of high concentration to an area of low concentration
• diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration
• the diffusion of particles from an area of low concentration to an area of high concentration

Tags

NGSS.MS-LS1-1

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

Tags

NGSS.MS-LS2-1

Equilibrium?

• a large  amount of substance on  side of the cell and a small amount on the other side
• a small  amount of substance on  side of the cell and a large amount on the otherside
• equal amount of substance on either side of the membrane  
• no particles on either side of the a cell membrane

Tags

NGSS.MS-LS1-2

Passive Transport means

• Energy is used

• No energy is used

• Energy is created

The picture below is an example of _________________.

• osmosis
• isotonic
• diffusion
• active transport

Tags

NGSS.MS-LS1-2

A difference in the concentration of a substance across a distance. High in one place, low in another place.

• Osmosis

• Diffusion

• Concentration Gradient

• Magic

A cell in a hypotonic solution will...

• lose water and shrivel

• gain water and burst

• not change at all

• experience water movement in both directions

A cell in a isotonic solution will...

• lose water and shrivel

• gain water and burst

• not change at all

• experience water movement in both directions

process of diffusion in which molecules pass across the membrane through cell membrane channels with concentration gradient

• Active transport

• Facilitated diffusion

• Osmosis

• Diffusion