Ch 3 Quiz - membrane. junctions

Which letter indicates the phospholipid bilayer?

• A
• B
• C
• D

Which letter indicates the polar head of a phospholipid?

• C
• D
• E
• F

Which letter indicates the nonpolar region of a phospholipid?

• C
• D
• E
• F

Which letter indicates a cholesterol molecule?

• C
• D
• E
• F

Which letter indicates a glycolipid?

• E
• F
• G
• I

Which letter indicates the glycocalyx?

• A
• B
• H
• I

The portion of a phospholipid facing outward toward the extracellular space or inward to the interior of the cell is both

• hydrophobic and polar
• hydrophobic and nonpolar
• hydrophilic and polar
• hydrophilic and nonpolar

The portion of a phospholipid facing inward toward the middle of the phospholipid bilayer is

• hydrophobic and polar
• hydrophobic and nonpolar
• hydrophilic and polar
• hydrophilic and nonpolar

What portion of the cell membrane is involved in cell to cell recognition?

• integral proteins
• phospholipid bilayer
• glycocalyx
• cholesterol

Which of the following would NOT help bind cells together?

• glycocalyx

• glycolipids

• glycoproteins

• cytoskeletons