A group of patients was seen on an emergency basis complaining of abdominal cramps and watery diarrhea within 5 hours of attending a picnic in which ham, potato salad, and custard-filled pastries were on the menu. Which of the following is the likely cause of this disease?
A. Replication of virus that prevents reabsorption of water
B. Bacterial adherence and invasion
C. Bacterial colonization and toxin production
D. Preformed bacterial toxin
E. Attachment and disruption of intestinal lining due to parasitic infection
Answer: D. Preformed bacterial toxin
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Microbiology
- Select the correct statement about active and passive immunity.
- Select the correct definition about tissue grafts.
- Natural killer (NK) cells ________.
- Clonal selection of B cells ________.
- Fever ________.
- What is the role of interferon in defense against disease?
- Which of the following is not a function of the inflammatory response?
- Which of the following does not respond to cell-mediated immunity?
- Which statement is true about T cells?
- Which of the following is not a first line of defense?
- Innate immune system defenses include ________.
- B cells respond to the initial antigen challenge by ________.
- Which of the following is not a method by which antibodies work?
- Which of the following is associated with passive immunity?
- Which of the following is not a type of T cell?
- The antibody molecule is held together by ________ bonds.
- The primary immune response ________.
- Which of the following statements about Complement is false?
- Which of the following is a part of the second line of defense against microorganisms?
- Select the correct statement about the function of antibodies.
- Cytotoxic T (TC) cells are like natural killer (NK) cells because they both
- Cancer cells and virus-infected body cells can be killed before activation of adaptive immunity by ________.
- Antibody functions include all of the following except ________.
- Phagocyte mobilization involves ________.
- Which of the following is not an autoimmune disease?
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