B2 Defense against Disease Map from memory

Document Sample
B2 Defense against Disease Map from memory Powered By Docstoc
					                                      Defence against Disease
When bacteria get into your
body some white blood cell
                                       Map From Memory                   Other types of white blood cell make
can “eat” them.                                                          ANTIBODIES.
 like pacman!                                                            These attach to ANTIGENS on the
                                                                         microbe and destroy the microbe
                                             White blood cell



                         bacteria




                                                           Digestive
                                                           enzymes
    This is called Phagocytosis

                                                                                   Antibodies – these
                                                                                   target specific sites
                                                                                   on the microbe.



                                                                              Their shape is important
                                                                              because it fits exactly
                                                                              onto a site on the
                                                                              microbe.
                              Mmmmm !
                              I feel much
                              better now !   attachment site/antigen
                                             antibody          microbe

                                               Surface of microbe


                                                                             A Vaccination will produce
            KEY WORDS                                                        antibodies and prevent
            Phagocytosis                                 microbe is
                                                          destroyed          you geting the disease in
            Antibody                                                         the first place. HOW?
            Antigen

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:57
posted:9/11/2012
language:Unknown
pages:1