Cell Membrane Structure

What is the name of the model we use to explain the cell membrane's structure?

• Semipermeable Model

• Bubble Model

• Fluid Mosaic Model

• Lipid Model

What is the primary function of proteins in the cell membrane?

• Energy storage

• Structural support

• Transport and communication

• Insulation

Hydrophilic portion of cell membrane?

• A
• C
• D
• E 

Hydrophobic region of the cell membrane?

• E
• B
• C
• A 

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

• carbohydrate

• lipid

• protein

• nucleic acid

What is NOT TRUE about the cell membrane?

• It controls what enters and leaves the cell
• Semipermeable
• Phospholipid bilayer
• Contains digestive enzymes

What forms the channels and pumps in the phospholipid bilayer?

• carbohydrates
• proteins
• hydrophilic heads 
• lipids

In the diagram, what is letter G?

• Phospholipid

• Phospholipid bilayer

• Cholesterol

• Carbohydrate

• Carrier or transport protein

In the diagram, what is letter E?

• Phospholipid

• Phospholipid bilayer

• Cholesterol

• Carbohydrate

• Carrier or transport protein

The cell membrane, also known as the ​ (a)   membrane, is found in ​ (b)   types of cells. It controls and ​ (c)   what is allowed in and out of the cell to help maintain ​ (d)   or a balanced environment. It also is known as the ​ (e)   because the different parts of the cell membrane can move around and are not fixed in one location.

• plasma
• all
• regulates
• homeostasis
• fluid mosaic model
• some

Tags

NGSS.MS-LS1-2