Microcheck 166

In most cases, B cells that bind antigen require accessory signals from a T-helper cell to become activated. Activated B cells proliferate, ultimately producing plasma cells, which secrete antibody, and long-lived memory cells. Affinity maturation and class switching occur in the primary response; these enable a swift and more effective secondary response. T-independent antigens can stimulate an antibody response by activating B cells without the aid of T-helper cells.

■ Describe the process of clonal selection.

■ How do B cells increase their ability to bind to antigen?

■ Why should B cells residing in the mucosal-associated lymphoid tissues produce IgA?

Was this article helpful?

0 0
You Are What You Eat

You Are What You Eat

Nutrition is a matter that people spend their careers learning about and requires volumes of books to explain. My objective is to instruct you how to consume a healthy nutritional diet that aids your body in burning off fat instead of storing it. You do not require overwhelming science to get this.

Get My Free Ebook

Post a comment