Plasma Membrane

Front

What is the general term for proteins that reside on either the exterior or interior surface of the plasma membrane?

Back

Small-Surface protein.

Front

What type of protein is located on the cell membrane surface and can bind to corresponding proteins to initiate cellular signaling pathways?

Back

Receptor protein.

Front

What structure forms due to the two layers of phospholipids coming together?

Back

Bilayer.

Front

What is the primary component that makes up the cell membrane?

Back

Phospholipids.

Front

What type of embedded protein in the cell membrane provides a hydrophilic passageway for small, polar ions?

Back

Channel protein.

Front

What is the function of membrane-spanning proteins?

Back

They extend across the plasma membrane and can facilitate transport or act as receptors.

Front

What role do carbohydrates play in the plasma membrane?

Back

They are involved in cell recognition and signaling.

Front

What is the fluid mosaic model?

Back

It describes the structure of the plasma membrane as a mosaic of various components that move fluidly.

Front

What is the significance of cholesterol in the plasma membrane?

Back

Cholesterol helps to stabilize the membrane's fluidity.

Front

What are phospholipids composed of?

Back

A hydrophilic (water-attracting) head and two hydrophobic (water-repelling) tails.