Cell Membrane and Cell Transport Review

What three substances make up the cell membrane?

• lipids, starches, nucleic acids
• lipids, fats, sugars
• lipids, sugars, proteins
• lipids, proteins, carbohydrates

What is the movement of molecules from an area of high to low concentration and does not require energy?

• osmosis
• diffusion
• facilitated diffusion
• active transport

What uses proteins (the proteins make a channel) to move molecules across the a membrane. It does not require energy

• osmosis
• diffusion
• facilitated diffusion
• active transport

The function of the plasma membrane is....

• to regulate what enters and leaves the cell.
• fight bacteria and viruses that enter the cell.
• provide rigid support and protection to the cell.
• make sure each cell can move

Hydrophilic means...

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

Hydrophobic region of the cell membrane?

• E
• B
• C
• A 

____ cells have a cell membrane.

• No

• All

• Only prokaryote

• Only eukaryote

What is NOT TRUE about the cell membrane

• It controls what enters and leaves the cell
• Semipermeable
• Phospholipid bilayer
• Contains digestive enzymes

What word describes the tail of the phospholipid and means "water fearing?"

• Hydrophobic

• Hydrophilic

• Hydroelectric

• Hydroloric

Passive Transport uses ____ energy

• no

• a lot of

• a little bit of

• some