To produce an allergic reaction in Type I hypersensitivity, the antigen
A. must bind to mast cells.
B. must bind to free IgE molecules.
C.
must just bind to IgE on mast cells.
D.
must bind to two neighboring IgE molecules on mast cells crosslinking them.
D
Biology & Microbiology
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Type IV pili are involved in
A) attachment of cells to surfaces. B) twitching motility. C) pathogenesis. D) attachment to surfaces, twitching motility, and pathogenesis.
Biology & Microbiology
Like Fordism, neo-Fordism relies on mass production and consumption
Indicate whether this statement is true or false.
Biology & Microbiology
Which of the following is a type of cytokine?
a. complement protein b. mast cell c. immunoglobulin d. lysozyme e. tumor necrosis factor
Biology & Microbiology
Substances that plug up an enzyme's active site are ________
A) enzyme substrates B) enzyme inhibitors C) enzyme catalysts D) enzyme products
Biology & Microbiology