Chapter 43 - Biology, 7e (Campbell) Chapter 43: The Immune...

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Biology, 7e (Campbell) Chapter 43: The Immune System Chapter Questions 1) The innate immunity that protects a person digging in the garden from developing a microbial infection includes all of the following except A) lymphocytes. B) the skin. C) mucous membranes. D) acidic secretions. E) antimicrobial proteins. Answer: A Topic: Concept 43.1 Skill: Comprehension 2) Physical barriers to invasion by other organisms A) include the skin and the mucous membranes. B) are difficult for bacteria and viruses to penetrate. C) may work in conjunction with secretions like tears, perspiration, and mucus. D) Only A and C are correct. E) A, B, and C are correct. Answer: E Topic: Concept 43.1 Skill: Knowledge 3) Both the eye and the respiratory tract are protected against infections by which of the following? A) the mucous membranes that cover their surface B) the secretion of complement proteins C) the release of slightly acidic secretions D) the secretion of lysozyme onto their surface E) interferons produced by immune cells Answer: D Topic: Concept 43.1 Skill: Comprehension 4) How do people contract salmonella poisoning? A) The microbe can survive the acidic environment of the stomach and resist lysosomal degradation in macrophages. B) The chemotactic messengers released by the salmonella bacterium did not attract sufficient neutrophils to entirely destroy the infection. C) There was a delay in selection of the population of eosinophils that recognize and are responsible for fighting these bacterial infections. D) The bacterium released chemical messengers that make it resistant to phagocytosis. E) The combination of foods eaten at the meal reduced the pH of the stomach sufficiently so that the bacterium was not destroyed. Answer: A Topic: Concept 43.1 Skill: Comprehension 1
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5) The lymphatic system involves which of the following organs? A) spleen and lymph nodes B) adenoids and tonsils C) appendix and special portions of the small intestine D) A and B only E) A, B, and C Answer: E Topic: Concept 43.1 Skill: Knowledge 6) Which statement about the complement system is true? A) These proteins are involved in innate immunity and not acquired immunity. B) These proteins are secreted by cytotoxic T cells. C) This group of proteins includes interferons. D) These proteins are one group of antimicrobial proteins. E) none of the above Answer: D Topic: Concept 43.1 Skill: Comprehension 7) In the inflammatory response, the absence of which of the following would prevent all the others from happening? A) dilation of arterioles B) increased permeability of blood vessels C) increased population of phagocytes in the area D) release of histamine E) leakage of plasma to the affected area Answer: D Topic: Concept 43.1 Skill: Comprehension 8) Which action below is affected by an antihistamine? A) blood vessel dilation
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This note was uploaded on 01/26/2012 for the course BIO 101 taught by Professor Kelly during the Spring '11 term at Northwestern IA.

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Chapter 43 - Biology, 7e (Campbell) Chapter 43: The Immune...

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