Membrane Structure

Structure C in the diagram is

• Cholesterol

• Phospholipid

• Glycoprotein

• Channel protein

A phospholipid has two parts. What are they called?

• Hydrophilic Head, Hydrophobic Tail

• Hydrophobic Head, Hydrophilic Tail

• Channel and carrier proteins

• Glycolipids and glycoproteins

Cholesterol controls membrane ________________________.

• Fluidity

• Stability

• Both

Which if the following is not a structural part of the cell membrane?

• phospholipids

• cholesterol

• proteins

• DNA

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

True or false - The hydrophilic head of the cell membrane repels water.

• True

• False

True or false - Channel proteins are “transmembranes” meaning they go completely through the cell membrane.

• True

• False

Most of the cell membrane is made of...

• phospholipids

• Carbohydrates

• Proteins

• Nucleic acids

What forms the channels and pumps in the phospholipid bilayer?

• Carbohydrates

• Proteins

• Hydrophilic heads 

• Lipids

Which of the following is NOT a function of the cell membrane?

• 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.

• Protects the cell from its environment.

Tags

NGSS.MS-LS1-2