Select all of the virulence factors that allow pathogens to invade the host A) Exoenzymes B) Toxins C) Pili D) Capsules
Select all of the virulence factors that allow pathogens to invade the host
A) Exoenzymes
B) Toxins
C) Pili
D) Capsules
Homework Answers
Ans.C. Pili
Virulence factor help bacteria to invade host and cause disease. Many parhogenic bacteria colonize mucosal sites by using pili.
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Select all of the virulence factors that allow pathogens to invade the host A) Exoenzymes B) Toxins C) Pili D) Capsules
Lysogenic bacteriophages contribute to bacterial virulence because bacteriophages: Select one: a. produce toxins. O b. carry...
Lysogenic bacteriophages contribute to bacterial virulence because bacteriophages: Select one: a. produce toxins. O b. carry plasmids. c. kill human cells. O d. give new gene sequences to the host bacteria. e. kill the bacteria, causing release of endotoxins. HEPA filters are effective because they are designed to remove all airborne particulates, including microorganisms down to: Select one: a. 0.01 micrometers. b. 10 micrometers. c. 1 micrometer. O d. 0.3 micrometers. e. 10 nanometers.
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46. Adhesins are A. involved in the first step of the infectious process B. often found...
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This reduces M.I.D. (a) capsule (b) slime layer (c) conjugation pili (d) fimbriae (e) all of...
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Describe virulence factors and give an example for each of the categories. a.) Structural b.) Enzymatic...
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Which of the following statements is NOT a characteristic of the B subunit of A-B toxins?...
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Please solve all questions!
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Lysogenic bacteriophages contribute to bacterial virulence because bacteriophages: Select one: a. produce toxins. O b. carry plasmids. c. kill human cells. O d. give new gene sequences to the host bacteria. e. kill the bacteria, causing release of endotoxins. HEPA filters are effective because they are designed to remove all airborne particulates, including microorganisms down to: Select one: a. 0.01 micrometers. b. 10 micrometers. c. 1 micrometer. O d. 0.3 micrometers. e. 10 nanometers.
46. Adhesins are A. involved in the first step of the infectious process B. often found at the tip of pili C. found in flagella. D. endotoxins. E. involved in the first step of the infectious process AND often found at the tip of pili. 47. The first step in the establishment of infection is that the organism must A. invade host tissues B. attach to host cells C. evade phagocytes D. produce toxins 48. Colonization of the body is...
14. Bacteria capsules: a Somewhat protect the organism from destruction in an unfavorable enviro b) Enhances the organism's virulence. c) Helps hide the organism from the host's immune system. d) All of the above are true. 15. Empty glassware and metal instruments might correctly be sterilized by: a) Autoclaving b) Dry heat c) UV light d) Ionizing radiation 16. Disinfectants: a) May be applied to the skin surfaces b) May be used to decontaminate wounds and abrasions. c) May be...
Please solve all questions!
66. Harmless variants or their derivatives of pathogens, which stimulate the immune system are called a. transformers b) vaccines c. viral envelopes d. mutagens 67. Iniectious agents of disease consisting only of proteins: a. viroidsb. viruses c. introns prions e. transposons 68. Plasmids, transposons and viruses are all a. infectious d. 2 of the above e.none of the above mobile genetic elements c. immobile genetic elements The major component of the bacterial genome is ircular double...
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