Cell Membrane Structure & Function Quiz

What is the function of cholesterol in the cell membrane?

• To transport large molecules

• To provide structural support

• To communicate with other cells

• To identify a cell as part of an organism

What is a cell membrane?

• A small particle consisting of RNA and associated proteins

• A rigid layer of polysaccharides lying outside the plasma membrane

• Vesicles and folded membranes within the cytoplasm of most eukaryotes

• A semipermeable membrane surrounding the cytoplasm of a cell

What type of cells contain a cell membrane?

• Eukaryotic

• Prokaryotic

• Both

The cell membrane consists of how many phospholipid layers?

• 1

• 2

• 3

• 4

Which of the following structures is found in the cell membrane?

• channel proteins

• cholesterol

• receptor proteins

• phospholipids

The molecules that make up the cell membrane bi-layer are composed of which two parts?

• Hydrophilic heads, hydrophilic tails

• Hydrophobic heads, hydrophobic tails

• Hydrophilic heads, hydrophobic tails

• Hydrophobic heads, hydrophilic tails

The cell membrane model is sometimes referred to as

• the fluid mosaic model

• the cytokinesis model

• the protein complex model

• the lipid-phospho model

The Phospholipid tails are _______________.

• Hydrophilic

• Hyrdophobic

What things can go through directly through the phospholipid bilayer?

• Sugars, Glucose

• Enzymes

• Charged ions like Na+

• CO2 and O2 and water

This cell structure contains a lipid bilayer and transports materials from the Golgi out of the cell.

• cell wall

• vesicle

• ribosome

• vacuole