cell transport

What is the difference between diffusion and osmosis?

• Diffusion is the general movement of molecules; osmosis specifically refers to the movement of water across a membrane.

• Osmosis is the movement of all types of molecules, while diffusion is only for water.

• Diffusion requires energy input, whereas osmosis does not.

• Diffusion only occurs in gases, while osmosis occurs in liquids.

What kind of transport does not require energy?

• Active 
• Vacuole 
• Passive 
• Na/K Pump 

Which of the following is the best example of osmosis? 

• NA/K Pump 
• Water moving though the cell membrane 
• Kidneys 
• Photosynthesis 

What are the 2 parts of a phospholipid? 

• Hydrophobic head, hydrophilic tails 
• Hydrophobic heads, hydrophobic tails 
• Hydrophilic heads, hydrophobic tails 
• Hydrophilic heads, hydrophilic tails 

Hydrophilic means...

• water-loving
• water-fearing
• nonpolar
• lipid soluble

Movement of particles from high to low concentration. 

• Passive Transport
• Active Transport

• Passive Transport
• Active Transport

Osmosis is a form of ______________. 

• Passive Transport
• Active Transport

What is it called when molecules move across the cell membrane from an area of high concentration to an area of low concentration through a carrier protein?

• Diffusion
• Osmosis
• Active Transport
• Facilitated Diffusion

The  movement of water from a high concentration to a low concentration is called

• diffusion
• osmosis
• facilitated diffusion
• active transport