Cell Membrane

Front

What is the cell membrane?

Back

The cell membrane is a biological membrane that separates and protects the interior of all cells from the external environment.

Front

What is the primary function of the plasma membrane?

Back

To regulate what enters and leaves the cell.

Front

What is NOT TRUE about the cell membrane?

Back

Contains digestive enzymes.

Front

What does hydrophilic mean?

Back

Water-loving.

Front

Do all cells have a cell membrane?

Back

Yes, all cells have a cell membrane.

Front

What is the structure of the cell membrane?

Back

The cell membrane is primarily composed of a phospholipid bilayer.

Front

What does semipermeable mean in relation to the cell membrane?

Back

It means that the cell membrane allows certain substances to pass while blocking others.

Front

What are phospholipids?

Back

Phospholipids are molecules that make up the cell membrane, consisting of a hydrophilic (water-loving) head and two hydrophobic (water-fearing) tails.

Front

What role do proteins play in the cell membrane?

Back

Proteins in the cell membrane assist in transport, act as receptors, and provide structural support.

Front

What is the fluid mosaic model?

Back

The fluid mosaic model describes the structure of the cell membrane as a mosaic of various components (lipids, proteins, carbohydrates) that move freely.