Question

Describe the differences between cell-mediated and humoral immunity.

Answer 1

● Humoral Immunity:

- Activation and clonal selection of effector B cells, which produce antibodies that circulate blood.

- Effective against extracellular pathogens (microbes and their toxins)
-Ex. Fungi, parasties, protozoa, bacteria
-Acts in different environments
-Invaders are destroyed by antibodies (bind to antigen, make them for destruction)

● Cell-mediated Immunity :

- Activation and clonal selection of cytotoxic T cells, which identify and destroy infected cells.

- Against Intracellular Pathogens (all viruses and some pathogens
-Identify and destroy abnormal cells (fast)
-Develops ability to destroy intracellular organism (bacteria)
-T cells