Cell Membrane: Structure and Function

Front

What forms the channels and pumps in the phospholipid bilayer?

Back

Proteins

Front

Most of the cell membrane is made of...

Back

Lipids

Front

What is the name for a molecule that has a polar head region and a hydrophobic tail region?

Back

Amphipathic

Front

What are the main components of the cell membrane?

Back

Lipids, Proteins, Carbohydrates

Front

What role do proteins play in the cell membrane?

Back

They help substances pass through the membrane.

Front

What is the structure of a phospholipid?

Back

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

Front

What is the fluid mosaic model?

Back

It describes the cell membrane as a flexible layer made of lipid molecules with proteins embedded in it.

Front

What is the function of cholesterol in the cell membrane?

Back

Cholesterol helps to stabilize the membrane's fluidity.

Front

What are glycoproteins?

Back

Proteins with carbohydrate chains attached, important for cell recognition.

Front

What is selective permeability?

Back

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