TEST BANK microbiology a systems approach cowan 3e chapter013

Chapter 013 Microbe-Human Interactions: Infection and Disease Multiple Choice Questions Infection occurs when A Contaminants are present on the skin B A person swallows microbes in/on food C A person inhales microbes in the air D Pathogens enter and multiply in body tissues E All of the choices are correct The term infection refers to A Microorganisms colonizing the body B Contact with microorganisms C Contact with pathogens D Pathogens penetrating host defenses E None of the choices are correct Which is not terminology used for resident biota? A Pathogenic biota B Normal biota C Indigenous biota D Normal microbiota E Commensa ls Endogenous infectious agents arise from microbes that are A In food B The patient's own normal biota C On fomites D In the air E Transmitted form one person to another The human body typically begins to be colonized by its normal biota A Before birth, in utero B During and immediately after birth C When a child first goes to school D When an infant gets its first infectious disease E During puberty Resident biota are found in/on the A Ski n B Mout h C Nasal passages D Large intestine E All of the choices are correct Normal biota includes each of the following except A Bacteri a B Fung i C Protozoan s D Viruse s E All of the choices are correct Each of the following are inoculation of normal biota to a newborn except A The birth process through the birth canal B Bottle feeding C Breast feeding D Contact with hospital staf E All of the choices are correct Which of the following is not true of endogenous retroviruses? A ERV's are part of the normal biota B ERV's are vital for placental development in sheep C ERV's cause disease D ERV's fight of pathogenic viruses E All of these are true 10 The afect of "good" microbes against invading microbes is called A Microbial antagonism B Endogenous infection C Infectious disease D Axeni c E Gnotobiotis m 11 All of the following genera are considered resident biota of skin sites except A Escherichi a B Staphylococc us C Corynebacteri um D Micrococc us E Candid a 12 Resident biota of the gastrointestinal tract include A Streptococc us B Bacteroid es C Lactobacill us D Haemophil us E All of the choices are correct 13 Which genus is resident biota of the mouth, large intestine and from puberty to menopause, the vagina? A Lactobacill us B Treponem a C Haemophil us D Escherichi a E Clostridiu m 14 Opportunistic pathogens A Cause disease in every individual B Cause disease in compromised individuals C Are always pathogens D Have well developed virulence factors E None of the choices are correct 15 Pathogenic microbes that cause disease in healthy people are called A Opportunistic pathogens B Normal biota C Indigenous biota D True pathogens E Micropathoge ns 16 Which of the following is not a factor that weakens host defenses against infections? A Genetic defects in immunity B Physical and mental stress C Strong, healthy body D Chemothera py E Old age 17 Which genus is the most common resident biota of mouth surfaces? A Lactobacill us B Streptococc us C Haemophil us D Escherichi a E Mycobacteriu m 18 STORCH is an acronym that represents the most common A Genera of resident biota B Sexually transmitted diseases C Portals of entry D Vector s E Infections of the fetus and neonate 19 The greatest number of pathogens enter the body through the A Respiratory system B Gastrointestinal system C Urinary system D Genital system E Ski n 20 An infectious agent that originates from outside the body is called A Exogenou s B An exotoxin C An enterotoxin D Endogeno us E Axeni c 21 An infectious agent already existing on or in the body are called A Exogenou s B An exotoxin C An enterotoxin D Endogeno us E Axeni c 22 The minimum amount of microbes in the inoculating dose is the A Virulence factor B Indigenous biota C Infectious dose D Endotoxi n E Minimal dose 23 Which of the following is not a method of adhesion? A Fimbria e B Surface proteins C Specialized receptors D Adhesive slime or capsules E Cili a 24 Once a microbe has entered a host, what process performed by certain white blood cells will attempt to destroy the microbes? A Phagocytos is B Adhesio n C Encapsulati on D Marginati on E Exocytosi s 25 Which of the following is not an anti-phagocytic factor? A Secretion of slime B Production of leukocidins C Adhering to the host D Secretion of a capsule E Ability to survive intracellularly 26 Virulence factors include all the following except A Capsule s B Ribosome s C Exoenzym es D Endotoxi n E Exotoxi n 27 Microbial hyaluronidase, coagulase and streptokinase are examples of A Adhesive factors B Exotoxin s C Hemolysi ns D Antiphagocytic factors E Exoenzym es 28 Exotoxins are A Protein s B Only released after a cell is damaged or lysed C Antiphagocytic factors D Secretions that always target nervous tissue E Lipopolysaccharid es 29 Enterotoxins are A Virulence factors B Toxins that target the intestines C Protein s D Exotoxin s E All of the choices are correct 30 Which is mismatched? 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