462 



MICROBIOLOGY 



ganism which seeks to resist its action is shown by those spe- 

 cific precipitating ferments, such as precipitants, which are 

 produced in the organism after the introduction of extraneous 

 albumin. 



The immune body. In taking Ehrlich's side chain theory 



AA/ 



V 



r \ Toxophorous, (poisonous)group of Qtoms 

 j \-7ox -!n 

 f' /-/apfophons, (combining) group of atoms 



~7bx!n combined with receptor 



Body Cell 



f-^/FreeUniceptors (Receptors) produced by\anti- 

 \^S overatimulation of the cells by the Toxin } toxin 



^~--^^..^&^//7 neutralized by the ant! toxin (Free receptor^ 



Complement -normally present in blood serum. It ia possessed 

 of two groups of atoms, (I) EK/ZYMOTIC 



Omboceptor, &- immune body. Free receptor with tiro Combining 

 T groups of atoms. They aif present in the serum ofanima/s immun- 

 ized to certain bacteria and animal protied substances. 



-Cell 



W * 



Bacterium 



Bacterium 



Ehrlich 's conception of the formation of Ont! toxin, the production of 

 Tox/c ana Bacterial Immunity. 



Fig. 100. Diagrams illustrating the production of antitoxin and lysis, 

 to explain bacteriolysis and cytolysis it is found that it is 

 necessary to assume that when an animal becomes immune to 



