Cell Membrane & 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

• Made of cellulose (aka fiber)

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

• True
• False

Tags

NGSS.MS-LS1-2

What do the brown structures represent?

• Phospholipids
• Cholesterol Proteins
• Channel Proteins 
• Cytoskeleton Filaments

Tags

NGSS.MS-LS1-2

The picture is an example of...

• active transport
• passive transport
• diffusion
• osmosis

What does a cell need to transport particles by active transport?

• Sun
• Wind
• Energy
• Channels

Which of the following is NOT part of the cell membrane?

• Lipids
• Carbs
• Proteins
• Nucleic Acids

Tags

NGSS.MS-LS1-2

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.

Tags

NGSS.MS-LS1-2

Hydrophobic region of the cell membrane?

• E
• B
• C
• A 

Tags

NGSS.MS-LS1-2

Hydrophilic portion of cell membrane?

• A
• C
• D
• E