Cell Membrane Quiz

What is the function of the cell membrane?

• A) Separates reactions from the outside environment

• B) Allows cell to interact with its inside environment

• C) Excretes wastes

• D) All of the above

Tags

NGSS.MS-LS1-2

What type of lipid is found in the cell membrane?

• A) Phospholipid

• B) Steroid

• C) Cholesterol

• D) Glycoprotein

Where are integral proteins located in the cell membrane?

• A) Embedded in the bilayer

• B) On the interior surface

• C) On the exterior surface

• D) Scattered throughout the membrane

What is the Fluid Mosaic Model?

• A) A static model of the cell membrane

• B) A model with proteins only

• C) A model with lipids only

• D) A model with a fluid phospholipid bilayer and scattered proteins

What type of biomolecule is the main component of the cell membrane?

• nucleic acid

• carbohydrate

• lipid

• protein

This image is an example of a phospholipid. Which part of a phospholipid is HYDROPHOBIC?

• Phosphate "head"

• Lipid "tails"

Where can proteins be found in the cell membrane?

• On the outside

• On the inside

• Embedded on top

• Channel all the way through

• All of the above

What is function of cholesterol in the cell membrane?

• To make the membrane flexible

• To attract water molecules

• To control the effects of temperature changes

• To allow nutrients and other essential molecules into the cell

The cell membrane is "semi-permeable". What does this mean?

• Provide rigid support and protect the cell

• Fight bacteria and viruses that enter the cell

• Make sure cell can move

• To control what enters and leaves the cell

Tags

NGSS.MS-LS1-2

Hydrophilic portion of the cell membrane?

• A

• C

• D

• E