Intro to the Cell Membrane

Multiple Choice

I am the outer most layer of an animal cell. What am I?

• cell wall
• nucleus
• cell membrane 
• cell skin

Multiple Choice

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

Multiple Choice

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

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

Multiple Choice

The cell membrane could be best compared to a _____ of the cell

•  power plant
• wall
• gate
• control centre

Multiple Choice

To provide a protective barrier between the interior of the cell and the outside environment is a function of _________.

• Cell Membrane
• Cell Wall
• Nucleus
• Mitochondria

Multiple Choice

What does homeostasis mean?

• balance

• cell wall

• transport

• staying still

Multiple Choice

What three substances make up the cell membrane?

• lipids, starches, nucleic acids
• lipids, fats, sugars
• lipids, sugars, proteins
• lipids, proteins, carbohydrates

Multiple Choice

Most of the cell membrane is made of...

• Lipids
• Carbohydrates
• Proteins
• Nucleic acids

Multiple Choice

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.

Multiple Choice

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

Multiple Choice

Hydrophilic means...

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

Multiple Choice

How many layers does the phospholipid bilayer have?

• Two

• One

• Three

Multiple Choice

What does "bilayer" mean?

• one layer
• two layers
• laminated
• bilateral

Multiple Choice

Hydrophobic region of the cell membrane?

• E
• B
• C
• A 

Multiple Choice

Hydrophilic portion of cell membrane?

• A
• C
• D
• E 

Multiple Choice

What do vacuoles, the nucleus, lysosomes, mitochondria, and chloroplasts all have in common?

• They are found in prokaryotic cells

• They are surrounded by a lipid membrane

• They have hard-to-spell names

• They contain DNA