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 does "bilayer" mean?

• one layer
• two layers
• laminated
• bilateral

Hydrophilic means...

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

Hydrophobic 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 

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

• Sun
• Wind
• ATP Energy

• Channels

Tags

NGSS.HS-LS1-7

What does the "fluid mosaic model" mean about the cell membrane?

• It can dissolve into fluid.
• The cell is mostly made of mosaic molecules.
• It looks like a flexible pattern made up of different parts.
• Somebody else should name these things.

What is one major difference between passive and active transport?

• Passive transport uses energy; active transport does not.
• Both types of transport use energy.
• Active transport uses energy; passive transport does not.
• No difference. They are both the same.

which of the following terms means the movement of water from high concentration to low concentration

• diffusion
• prokaryotes
• osmosis
• concentration