The Structure of a Cell Membrane Review

A phospholipid has 2 parts. What are they called? 

• Hydrophilic Head, Hydrophobic Tail 
• Hydrophobic Head, Hydrophilic Tail 

A ______________ is composed of a phosphate and glycerol head and 2 fatty acid chain tails. 

• phospholipid 
• Carbohydrate
• Cholesterol 
• Protein 

Which structure on a Phospholipid is hydrophilic?

• Structure A (Glycerol Head)

• Structure B (Fatty Acid Tail)

Which part of the phospholipid is hydrophobic?

• Structure A (Glycerol Head)

• Structure B (Fatty Acid Tail)

Describes the arrangement of the cell membrane as flexible, bendable, and made of many parts. 

• The Fluid Mosaic Model 
• The Major Mobility Model 
• The Crazy Cell Model
• The Maze Model

The cell membrane is selectively permeable, which means...

• All materials can enter and leave the cell
• Certain things can enter while others cannot
• The cell manually sorts through all materials
• Only certain cells can interact with the cell.

The majority of the cell membrane is made of which macromolecule?

• Lipids
• Carbs
• Proteins
• Nucleic acids

How many layers thick is the lipid bilayer?

• 1
• 2
• 3
• 4

How does a cell membrane help maintain homeostasis for a cell?

• Regulates what enters and leaves the cell
• Flexibility
• Protective barrier
• Structure and support

Tags

NGSS.HS-LS1-3

Hydrophobic region of the cell membrane?

• E
• B
• C
• A