Cell Membrane and Transport

Which statement best describes the cell membrane?

• The protective outer layer that controls what enters and leaves the cell.
  
• Stores information on DNA molecules / Directs and controls the activities of the cell.
  
• A folded membrane that moves materials around inside cells / Also acts as the site of manufacturing materials needed by the cell.
  
• The smallest organelle with a huge job / Makes proteins, which are the building blocks of the body.
  

Tags

NGSS.MS-LS1-2

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
• laminated
• bilateral

What is embedded in the phospholipid bilayer?

• Proteins
• Salt
• Water
• Worms

What forms the channels and pumps in the phospholipid bilayer?

• Carbohydrates
• Proteins
• Hydrophilic heads 
• Lipids

True or False:  Regulating what enters and leaves the cell helps the cell maintain homeostasis. 

• True
• False

Tags

NGSS.HS-LS1-3

What do the brown structures represent?

• Phospholipids
• Cholesterol Proteins
• Channel Proteins 
• Cytoskeleton Filaments

Hydrophilic means...

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

Hydrophobic region of the cell membrane?

• E
• B
• C
• A 

Hydrophilic portion of cell membrane?

• A
• C
• D
• E