Cell Membrane and Cell transport quiz

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

Most of the cell membrane is made of...

• Phospholipids

• Carbohydrates

• Proteins

• Nucleic acids

What is embedded in the phospholipid bilayer?

• proteins
• salt
• water
• trapped animals

Hydrophilic means...

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

Hydrophobic region of the cell membrane?

• E

• B

• C

• A

Hydrophilic portion of cell membrane?

• A
• C
• D
• E 

What is D

• Phospholipid
• carrier protein
• cholesterol
• peripheral protein

The diffusion of water across a selectively permeable membrane is called

• osmotic pressure.
• osmosis.
• pinocytosis.
• active transport.

Cells in a hypertonic solution will _________

• shrink

• swell

• increase in mass

cells in a hypotonic solution will ___

• shrink

• swell

• decrease in mass