Diffusion & Osmosis

Where is there a low concentration of dye?

• at the bottom of cup
• in the color
• at the top of cup 
• no concenteraion gradient

The picture below is an example of _________________.

• osmosis
• isotonic
• diffusion
• active transport

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

During osmosis

• water moves from high to low concentration
• large or oddly shaped molecules move across a cell membrane
• water moves when energy is used
• proteins are built

Permeable means

• things can pass through
• the concentration levels are different
• it is permanent
• things are stuck

The diffusion of WATER through a semi-permeable membrane is called?

• Osmosis

• Cell wall

• Diffusion

• Respiration

Where is there a low concentration of perfume?

• in the bottle
• on the hand
• in the room
• in the top

What is diffusion?

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

The term used to describe the diffusion of water.

• Diffusion
• Osmosis
• Selective Permeability
• Equilibrium

The term used to describe when some molecules are able to pass through a membrane and others are not.

• Osmosis
• Diffusion
• Selective Permeability
• Equilibrium