Cell Membrane Structure and Function Quiz

What is the primary structural component of the plasma membrane?

• Nucleic acids

• Proteins

• Phospholipids

• Carbohydrates

How do phospholipids arrange themselves in a liquid environment?

• In a bilayer with heads facing outward

• In a single layer with heads facing inward

• In a solid structure

• In a random pattern

What is the role of proteins embedded in the plasma membrane?

• They form the cell wall

• They store genetic information

• They transport substances and aid in cell communication

• They provide energy to the cell

What is the function of glycoproteins in the cell membrane?

• To provide structural support

• To act as recognition signals to other cells

• To store energy

• To transport oxygen

How does cholesterol affect the plasma membrane?

• It decreases the membrane's thickness

• It supports the membrane and regulates fluidity

• It makes the membrane rigid

• It increases the membrane's permeability