Answer to Question 1
Cytotoxic T cells attack and destroy body cells infected with viruses or intracellular bacteria. They can also attach cancer cells. Delayed hypersensitivity cells respond to foreign antigens processed by macrophages or similar cells by accumulating at the site of the antigenic material, where they secrete a variety of lymphokines that attract macrophages, activate them, and stimulate them to secrete additional cytokines.
Answer to Question 2
Hyperplasia: increase in cell size with an increase in cell number
Hypertrophy: increase in cell size without an increase in cell number
Blood cells
Invasion and metastasis by cancer cells
Cloud Types: Vertical Development
Schematic diagram showing polyclonal response by B cells against linear epitopes.
Sand Dune Types
Micrographs and drawings of three types of simple epithelia, with examples of their functions and lo