Cell Membrane

Front

What forms the channels and pumps in the phospholipid bilayer?

Back

Proteins

Front

What is the primary function of the plasma membrane?

Back

To regulate what enters and leaves the cell.

Front

What does hydrophilic mean?

Back

Water-loving

Front

What is the hydrophilic portion of the cell membrane?

Back

The phosphate heads of phospholipids.

Front

What are the main components of the cell membrane?

Back

Lipids, proteins, and carbohydrates.

Front

What is the structure of the phospholipid bilayer?

Back

Two layers of phospholipids with hydrophilic heads facing outward and hydrophobic tails facing inward.

Front

What role do cholesterol molecules play in the cell membrane?

Back

They help to stabilize the membrane's fluidity.

Front

What is the difference between hydrophilic and hydrophobic molecules?

Back

Hydrophilic molecules are attracted to water, while hydrophobic molecules repel water.

Front

What is the significance of membrane proteins?

Back

They facilitate transport, act as receptors, and provide structural support.

Front

What is selective permeability in the context of the plasma membrane?

Back

The ability of the membrane to allow certain substances to pass while blocking others.