Cell Membrane and Transport

Which type of biological macromolecule is the main component of the plasma membrane?

• carbohydrate

• lipid

• protein

• nucleic acid

What forms the channels and pumps in the phospholipid bilayer?

• carbohydrates
• proteins
• hydrophilic heads 
• lipids

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

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

• True
• False

Tags

NGSS.HS-LS1-3

Something is ___________ ____________
when some molecules can cross the membrane while others cannot. 

• Selectively (or Semi) Permeable 
• Totally Transparent
• Liquid Licorice 
• Heavily Patrolled 

What is the diffusion of water?

• osmosis
• active transport
• diffusion
• facilitated diffusion

Which type of movement requires energy?

• osmosis
• active transport
• diffusion
• facilitated diffusion

What are the three types of passive transport?

• osmosis, diffusion, active transport
• active transport, facilitated diffusion, osmosis
• diffusion, osmosis, facilitated diffusion
• facilitated diffusion, active transport, diffusion

Which type of movement has channels that help large molecules move through the cell membrane?

• active transport
• diffusion
• osmosis
• facilitated diffusion

What are the three types of transport that go from high to low concentration?

• active transport, osmosis, facilitated diffusion
• diffusion, osmosis, facilitated diffusion
• osmosis, active transport, isotonic
• facilitated diffusion, hypertonic, active transport