Explain briefly how penicillin initiates a type I hypersensitivity response
What will be an ideal response?
The reactive bond in the ?-lactam ring of penicillin reacts with proteins on the surface of human cells, with erythrocytes most commonly being involved. This modification generates a foreign epitope to which TH2 cells and B cells respond.
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Another name for a large granular lymphocyte is a _____
a. plasma cell b. helper T cell c. monocyte d. natural killer cell e. eosinophil.
Food exits the stomach by passing through the:
A) cardiac sphincter B) lower esophageal sphincter C) pyloric sphincter D) hepatic sphincter
What organ develops after implantation to provide the embryo with fluids and nutrients?
a. amnion b. fetus c. placenta d. endometrium e. chorion
Jessica realizes that Alex, her date to a dance, has had too much to drink. What should she do?
A) ?Insist that Alex stop drinking. B) Apologize for Alex's behavior.? C) ?Call Alex's parents. D) ?Leave the dance without Alex. E) ?Drive Alex home.