Diffusion Lesson

osmosis and diffusion

Multiple Choice

Where is there a low concentration of dye?

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

Multiple Choice

The picture below is an example of _________________.

• osmosis
• isotonic
• diffusion
• active transport

Multiple Choice

What is diffusion?

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

Multiple Choice

Which can easily pass through the cell membrane?

• Calcium and water

• oxygen and carbon dioxide

• large sugars

• large proteins

Multiple Choice

What does semi-permeable mean?

• Some molecules can move through the membrane

• Nothing can move through the membrane

• All molecules can pass through the membrane.

Multiple Choice

Movement of molecules from an area of high concentration to an area of low concentration is

• diffusion 
• passive transport
• osmosis
• all of the above

Multiple Choice

 An animal cell placed in a hypertonic (salty) solution will

• Stay the same
• Shrink- get smaller
• Swell- get bigger

Multiple Choice

A person would never have pure water put into their veins in a hospital because their cells would...

• Shrink/Dehydrate
• Expand

Multiple Choice

A person should never drink salty water because their cells would

• shrink
• expand

Multiple Choice

When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of

• Osmosis
• Diffusion
• Equilibrium