Cell Membrane Review Honors

Which of the following is true of this phospholipid molecule?

• The fatty acid tails are polar, hydrophilic molecules.

• The phosphate head contains no phosphorus.

• The fatty acid tails are non-polar, hydrophobic molecules.

• Water passes easily through the fatty acid tails.

Which of the following is the name of the model of the cell membrane that states that the phospholipids, proteins, and other molecules that make up the membrane are not stationary (i.e., they move relative to one another).

• Cell impermeability model

• Enzyme lock and key model

• Theory of relativity

• Fluid mosaic model

Phospholipid heads are...

• Hydrophobic
• Hydrophilic

Hydrophobic region of the cell membrane?

• E
• B
• C
• A 

Tags

NGSS.MS-LS1-2

The function of the plasma membrane is....

• to regulate what enters and leaves the cell.
• fight bacteria and viruses that enter the cell.
• provide rigid support and protection to the cell.
• make sure each cell can move

Tags

NGSS.MS-LS1-2

True or False: Phospholipids can move laterally (side to side) along the plane of the membrane.

• True

• False

What is a phospholipid made out of?

• Plasma, Membrane fluid, and Glucose 
• Carbohydrates, Proteins, and cholesterol
• Ribosomes, Glycerol, and Plasma
• Glycerol, Two fatty acids, and a phosphate group

Most of the cell membrane is made of...

• Lipids
• Carbohydrates
• Proteins
• Nucleic acids

Tags

NGSS.MS-LS1-2

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

• Lipids
• Carbohydrates
• Proteins
• Nucleic Acids

Hydrophobic means...

• water-loving

• water-fearing

• nonpolar

• lipid soluble