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AP BIO BR 1/14 • Question: Plants and animals both need to guard against other organisms invading their “bodies” and causing disease or even death. Organisms, such as plants and animals, are “born” with certain innate defenses already in place to help protect them against invasion. In no more than three sentences, choose TWO innate defenses for animals, such as humans, and ONE innate defense for plants and describe how it works as a defense to invasion or harm.
AP Biology Immune Systems Part 2
Antigen- binding sites Epitopes (antigenic determinants) Antibodies attaching to the antigen Antibody A Antigen Antibody B Antibody C
Infected cell Microbe Antigen- presenting cell Antigen fragment Antigen fragment MHCs Class II MHC molecule Class I MHC molecule T cell receptor T cell receptor Cytotoxic T cell Helper T cell
Humoral (Antibody) Cell Mediated