Antibodies
Antigens are large molecules (usually proteins) on the surface of cells, viruses, fungi, bacteria, and some non-living substances such as toxins, chemicals, drugs, and foreign particles. The immune system recognizes antigens and produces antibodies that destroy substances containing antigens.
Update Date: 7/24/2008 Updated by: Neil J. Gonter, MD, Assistant Professor of Medicine, Columbia University, New York, NY, and private practice specializing in Rheumatology at Rheumatology Associates of North Jersey, Teaneck, NJ. Review provided by Verimed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
EDIZIONI DI PUBBLICO DOMINIO (HTML)
- Alighieri - La Divina Commedia
RISORSE DAL WEB:
Encyclopaedia Britannica 1911 - PDF
Project Gutenberg: DVD-ROM 2007
Wikipedia for Schools - ENGLISH
Wikipedia for Schools - FRENCH
Wikipedia for Schools - SPANISH