BMA - Biology Form 4 (Unit 3) Plasma Membrane

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.

How many layers is the lipid bilayer?

• 1
• 2
• 3
• 4

"Water Fearing" 

• Hydrophobic
• Hydrophilic 
• Hydroelectric 
• Hydroloric

"Water Loving"

• Hydrophobic
• Hydrophilic 
• Hydroelectric 
• Hydroloric

Tags

NGSS.HS-ESS2-5

What is the function of the cell membrane?

• It regulates which materials enter and leave the cell.
• It contains the genetic information for the cell.
• It manufactures proteins for the cell.
• It generates chemical energy for the cell.

Tags

NGSS.MS-LS1-2

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.
• Somebody else should name these things.

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.

Most of the cell membrane is made of...

• Lipids
• Carbs
• Proteins
• Nucleic acids

Phospholipid tails are...

• Nonpolar
• Polar

Phospholipid heads are...

• Polar
• Nonpolar