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Chapter 42: The Immune System
The environment consists of numerous pathogens, which are agents, usually microorganisms, that cause diseases in their hosts.
1. Chapter 42: The Immune System
Chapter 42: The Immune System
2. Key terms check
Which key term matches this definition?
immunity that has memory and occurs after exposure to an antigen either from a pathogen or a vaccination
3. Key terms check
Which key term matches this definition?
attraction of molecular complementarity between antigen and antibody molecules
4. Key terms check
Which key term matches this definition?
immune reaction that results from immediate hypersensitivities in which an antibody-mediated immune response occurs within minutes of exposure to a harmless antigen
5. Key terms check
Which key term matches this definition?
protein that is produced by plasma cells after stimulation by an antigen; also known as an immunoglobulin
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