The Cell Membrane and Phospholipid Bilayer Quiz

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Which term is used to describe the barrier around the edge of a cell?

Cell surface membrane (correct)

Plasma membrane

Nucleus

Phospholipid bilayer

What is the function of the cell surface membrane?

To divide areas within the cell

To regulate the movement of substances into and out of the cell (correct)

To prevent the contents of the cell from spreading out

To provide structure to the cell

How would you best describe the cell surface membrane?

A disc with a nucleus in the center

A phospholipid bilayer

A 3D object

A sheet-like structure (correct)

What would happen if a cell did not have a cell surface membrane?

The contents of the cell would spread out Signup and view all the answers

Which of the following is true about all cells?

They have a plasma membrane Signup and view all the answers

What is the purpose of the cell surface membrane?

The cell surface membrane acts as a barrier, separating the cell from its surroundings. Signup and view all the answers

What is the composition of the cell surface membrane?

The cell surface membrane is made up of a phospholipid bilayer. Signup and view all the answers

How does the cell surface membrane contribute to cell identity?

The cell surface membrane helps to define the cell's identity by controlling what substances can enter or leave the cell. Signup and view all the answers

Why is it important to think of cells as 3-dimensional objects?

Imagining cells as 3-dimensional objects helps to visualize the cell surface membrane as a continuous barrier surrounding the cell. Signup and view all the answers

What would happen if the cell surface membrane was not present?

Without the cell surface membrane, the contents of the cell would disperse and there would be no distinct cell entity. Signup and view all the answers