Transport Mechanism

What is the main function of the cell membrane?

• To produce proteins

• To store genetic material

• To regulate what enters and exits the cell

• To provide energy

What type of transport allows small non-polar molecules to pass through the cell membrane without energy?

• Endocytosis

• Simple diffusion

• Facilitated diffusion

• Active transport

Which process requires energy to move substances against their concentration gradient?

• Facilitated diffusion

• Active transport

• Simple diffusion

• Passive transport

What is the sodium-potassium pump an example of?

• Passive transport

• Simple diffusion

• Facilitated diffusion

• Active transport

What is the process called when a cell takes in large molecules?

• Osmosis

• Diffusion

• Endocytosis

• Exocytosis