Cell Membrane Structure & Function

Which of the following is the function of the cell membrane? Select all that apply.

• Provides instructions to the cell and other organelles.

• Regulates compounds in and out fo the cell.

• Allows cells to communicate and interact with other cells.

• Breaks down wastes and other compounds.

• Protects the cell from its environment.

Tags

NGSS.MS-LS1-2

A phospholipid has two parts. What are they called?

• Hydrophilic Head, Hydrophobic Tail

• Hydrophobic Head, Hydrophilic Tail

Match the following:

• Cholesterol

• stabilizes and maintains flexibility of cell membrane

• Carbohydrates

• 2 layers; allows small & non-polar molecules to pass through the membrane

• Transport or Channel Proteins

• regulates what goes in and out of the cell

• Plasma or Cell Membrane

• located outside of the membrane; helps with cell communication and cell-to-cell connections

• Phospholipid bilayer

• allows large and polar molecules to pass through the membrane

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Which of the following describes the cell membrane?

• controls what enters and exits the cell

• provides energy for the cell

• transports proteins and lipids throughout the cell

• helps the cell to move around

Tags

NGSS.MS-LS1-2

What is the fluid mosaic model?

• describes the phospholipid bilayer only

• describes how the parts of the cell membrane can move around

• describes the parts of the cell membrane but they do not move around

• describes the cellulose that provides structure and protection to the cell

What is the function of the transport and channel proteins of the cell membrane?

• allows large molecules to pass through the cell membrane

• allows small, non-polar molecules to pass through the cell membrane

• identifies the cell and allow for cell-to-cell communication

• stabilizes the fluidity of the cell membrane

What is the function of the phospholipid bilayer of the cell membrane?

• allows large molecules to pass through the cell membrane

• allows small, non-polar molecules to pass through the cell membrane

• identifies the cell and allow for cell-to-cell communication

• stabilizes the fluidity of the cell membrane

Tags

NGSS.MS-LS1-2

What is the function of the carbohydrates of the cell membrane?

• allows large molecules to pass through the cell membrane

• allows small, non-polar molecules to pass through the cell membrane

• identifies the cell and allow for cell-to-cell communication

• stabilizes the fluidity of the cell membrane

What is the function of the cholesterol of the cell membrane?

• allows large molecules to pass through the cell membrane

• allows small, non-polar molecules to pass through the cell membrane

• identifies the cell and allow for cell-to-cell communication

• stabilizes the fluidity of the cell membrane

In the diagram, what is letter A?

• Phospholipid

• Phospholipid bilayer

• Cholesterol

• Carbohydrate

• Carrier or transport protein