Humans need amino acids to exist. Click on each of the necessary twenty listed to see their molecular structures and learn what type they are.

This encyclopedia article from Wikipedia on helper T cells discusses what Helper T cells are and the function of the CD4 protein.

Genereal information on malnutrition from the World Health Organization can be found on this page. Content includes a discussion on what exactly constitutes malnutrition and how it affects people, how it can be prevented, and some...

This site from the Wikipedia Encyclopedia describes the process of exocytosis and what is accomplished by the process. Throughout this brief article, links are provided for additional information on the subject.

How do proteins move to the Golgi Complex? What types of secretion are controlled by the Golgi complex? How does Golgi complex regulate the insertion of plasma membrane proteins? Can proteins be transported back to the rough endoplasmic...

A video that explores the different blood types and what distinguishes the different types. Learn that the ABO blood types are defined by the absence or presence of two major proteins that are found in the red blood cells membrane. Video...