Cell Membrane Quiz

What is the composition of the cell membrane?

• Phospholipids and proteins

• nucleic acid and lipids

• Nucleic acids and proteins

• Proteins and phosphates

What can move directly through phospholipids in the cell membrane?

• Allow small and non-polar molecules to pass through

• large molecules

• ions (charged molecules)

• polar molecules

Which type of protein goes all the way through the bilayer?

• Peripheral protein

• Integral protein

• Cholesterol

• Glycoprotein

Which type of protein is loosely bound to one side of the cell's surface?

• Peripheral protein

• Integral protein

• Cholesterol

• Glycoprotein

What is the function of cholesterol in the cell membrane?

• Attracts water

• Repels water

• Helps maintain flexibility of membrane

• Make up the bilayer

What is the function of glycoproteins in the cell membrane?

• Attracts water

• Repels water

• Involved in cell-to-cell recognition

• Help transport certain materials across the cell membrane

What are the functions of the cell membrane? (choose all that apply)

• monitor what enters/exits the cell

• cell-to-cell communcation

• helps maintain structure/shape of cell

• repel water

Tags

NGSS.MS-LS1-2

What are the parts of a phospholipid? (choose all that apply)

• fatty acid tails

• protein tail

• cholesterol head

• phosphate head

the fatty acid tails are ___ ; whereas, the phosphate head is ___

• hydrophilic; hydrophobic

• hydrophobic; hydrophilic

• hydrophobic; hydrophobic

• hydrophilic; hydrophilic

What is labeled 'C'?

• phospholipid bilayer

• fatty acid tail

• glycoprotein

• glycolipid