Understanding the Cell Membrane-Structure and Function

What term describes the cell membrane's ability to control what passes in and out?

• Impermeable

• Non-permeable

• Fully permeable

• Semi-permeable

What are the two parts of a phospholipid?

• Head and tail

• Head and arm

• Base and tip

• Core and limb

Which part of the phospholipid is attracted to water?

• Cholesterol component

• Bilayer center

• Hydrophilic head

• Hydrophobic tail

What does the term 'hydrophobic' mean in the context of phospholipids?

• Water-loving

• Water-fearing

• Water-neutral

• Water-forming

What is the main function of cholesterol in the cell membrane?

• DNA protection

• Energy storage

• Membrane stabilization

• Signal transmission

Which component of the cell membrane is crucial for transporting materials that struggle to pass through the phospholipid bilayer?

• Glycolipids

• Nucleic acids

• Carbohydrates

• Proteins

What role do carbohydrates play in the cell membrane?

• Cell identification

• Structural support

• Energy provision

• Enzymatic activity

Why is the plasma membrane considered essential for life?

• It stores genetic information

• It regulates cell transport
• It synthesizes proteins

• It produces energy

Label the regions of the phospholipid.

a

b

hydrophobic

hydrophilic

Label the parts of the phospholipid bilayer

b

a

Hydrophilic

Hydrophobic

Tags

Module 2

Module 3

3.3: Cell membrane structure