Day 23 Cell Membrane Structure:

Name First and Last

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What is NOT TRUE about the cell membrane

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

What does "bilayer" mean?

• one layer
• two layers
• three layers
• four layers

What is the function of cholesterol in the cell membrane?

• transport ions into the cell
• allows the fatty acids not to stick together
• communication between cells
• keeps polar molecules out of the cell

Hydrophilic means...

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

Hydrophobic region of the cell membrane?

• E
• D
• B
• C

identify C

• Cholesterol
• lipid
• carbohydrate
• protein channel

what is the function of the carbohydrate on the lipid bilayer?

• transport ions into the cell
• allows the fatty acids not to stick together
• identify what type of cell
• keeps polar molecules out of the cell

What is the role of transport proteins?

• make amino acids
• Move proteins sideways within plasma membrane
• give cells their shape
• Move needed substances or waste materials through plasma membrane

All cells have a:

• Nucleus
• Plasma membrane
• Cell wall
• Buddy