Exam 4 Key - Exam 4 MIBO 2500 Spring'08 Dr Walker Name_KEY There are 50 questions each question worth 2 pts totaling 100 points Please be sure to

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Exam 4 MIBO 2500 Spring ’08 Dr. Walker Name____ KEY _______________ There are 50 questions, each question worth 2 pts, totaling 100 points. Please be sure to double check that your answers from this test paper and those on the scantron are the same. Hand in the scantron and take home the test paper. 1. “Half the secret of [disease causing microbe] resistance is cleanliness, the other half is dirtiness.” What is meant by this in regards to innate defenses? a. Inflammation cannot ensue without a foreign invading organism b. Normal microbiota provides competition against foreign invading microbes c. Your immune system is easily depleted by antibiotics d. Antibodies cannot be generated until a foreign invading organism enters the body e. You must be exposed to a lot of dirt, pollen and dust to have a good supply of T and B cells 2. A first line defense of the body could be considered a. Cilia b. Antigens c. Lymph nodes d. Lymphocytes e. Antibodies 3. Which of the following areas would you NOT find normal microbiota? a. Muscle tissue b. Mouth c. Ear d. Intestine e. Nose 4. The major difference between innate and adaptive immune response is a. Innate identifies specific antigens while adaptive identifies general antigens b. Innate responds after adaptive c. Innate must utilize macrophages while adaptive utilize only neutrophils d. If innate responds first then adaptive does not have to respond e. Innate is limited to recognizing patterns in foreign material while adaptive recognizes special regions of foreign invaders 5. Probiotics, when consumed, repopulate the intestinal and urogenital tracts with permanent microbiota. a. True b. False 6. A bone cancer that involves hematopoietic stem cells would affect a. Normal microbiota b. The body’s first line defenses c. Complement system d. Leukocytes e. Antigens 7. If C3 was unable to be cleaved into C3a and C3b with the triggering of the complement cascade. What difference would this make to a bacteiral foreign invader and the immune response? a. Inflammation would be an exaggerated response b. Opsonization would may not be efficiently carried out c. Inflammation would be deficient in attraction of leukocytes d. A membrane attack complex may not form e. All but A
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8. If a bacteial cell gets past the first-line defenses, which pathways of the complement system could be possibly initiated? a. Classical b. Alternative c. Lectin d. a and b e. a, b and c 9. Inflammation is involved in which processes? a. Autoimmune diseases such as rheumatoid arthritis b. Activation of T helper 2 cell and recognition of antigen c. Complement system activities d. A and C e. A, B, and C 10. How does inflammation allow for migration of phagocytes to the site of infection? a. Release of cytokines that induce binding of phagocytes to blood vessel walls and
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This note was uploaded on 05/15/2008 for the course MIBO 2500 taught by Professor Walker during the Spring '08 term at University of Georgia Athens.

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Exam 4 Key - Exam 4 MIBO 2500 Spring'08 Dr Walker Name_KEY There are 50 questions each question worth 2 pts totaling 100 points Please be sure to

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