PHOSPHOLIPIDS

• WHAT DO PHOSPHOLIPIDS ALLOW?

  lipid-soluble, very small molecules to pass through
• EXAMPLES OF MOLECULES THAT CAN PASS THROUGH PHOSPHOLIPID BILAYER?

  CO2, O2, H2O
• WHAT DO PHOSPHOLIPIDS PREVENT?

  water-soluble, polar substances and large molecules from passing through
• EXAMPLES OF SUBSTANCES THAT CANNOT PASS THROUGH THE PHOSPHOLIPID BILAYER?

  Na+ ions, glucose