Info
Warning
Danger

Study Resources (Business Management)

  21.1   Multiple-Choice Questions   1) Which of the following vessels carries blood from the heart to the rest of the body? A) the aorta B) the superior vena cava C) the inferior vena cava D) the pulmonary arteries E) capillaries   2) Whole blood with the formed elements and clotting proteins removed is called A) plasma. B) lymph. C) serum. D) CSF. E) axenic.   3).
9 Views
View Answer
  21.2   True/False Questions   1) Lipid A causes disseminated intravascular coagulation (DIC).   2) Only adult ticks of the genus Ixodes may feed on humans.   3) Small doses of antimicrobial drugs are effective in treatment of the late stages of Borrelia infection because the microbe is extremely susceptible. 4) The terms "bacteremia" and "septicemia" are synonymous.   5).
0 Views
View Answer
  23.4   Essay Questions   1) There are vaccines to prevent infectious hepatitis and serum hepatitis, but none to prevent chronic hepatitis. Discuss why this is so. 2) Explain how Helicobacter pylori is able to resist the unfavorable environment of the stomach in order to cause disease.   3) List and describe three virulence factors associated.
0 Views
View Answer
  18.3   Short Answer Questions   1) When bone marrow is transplanted, the donated bone marrow cells regard the patient's cells as foreign, a condition referred to as __________ -versus-host disease.   2) Rheumatoid arthritis is a type __________ hypersensitivity reaction that results when B cells produce autoantibodies that damage the cartilage in the.
0 Views
View Answer
    31) Coccidioides germinates in the alveoli into a form called a(n) A) yeast. B) spore. C) arthroconidium. D) syncytium. E) spherule.   32) Which of the following is the most common fungal systemic disease in humans? A) Pneumocystis pneumonia B) blastomycosis C) coccidioidomycosis D) histoplasmosis E) valley fever   33) Which of the following diseases is almost diagnostic for AIDS? A) blastomycosis B) coccidioidomycosis C) Pneumocystis pneumonia D).
0 Views
View Answer
  20.3   Short Answer Questions   1) The only natural hosts for infection with the microbe mycobacterium leprae are humans and __________.   2) Listeriolysin O is an enzyme that allows Listeria monocytogenes to avoid __________ by host cells.   3) The neurotoxins of Clostridium botulinum produce __________ paralysis by preventing muscle contractions. 4) The binding of the.
0 Views
View Answer
  4) Compare and contrast dengue hemorrhagic fever and Ebola hemorrhagic fever. Discuss both the pathogens and the pathology. 5) How does the age of the infected individual play a role in the development of Epstein-Barr virus (HHV-4) infections such as infectious mononucleosis?       .
3 Views
View Answer
  24.1   Multiple-Choice Questions   1) Where in the kidney is blood initially filtered to form urine? A) the renal capsule B) efferent arterioles C) the collecting duct D) the nephron E) the renal pyramids   2) Which of the following structures allows fetal blood vessels to exchange nutrients and wastes with the mother's blood vessels? A) the uterus B) the uterine.
6 Views
View Answer
  18.4   Essay Questions   1) Compare and contrast type I hypersensitivity with type IV hypersensitivity with respect to reaction time, mediators, and cells involved. 2) Hashimoto's thyroiditis and Graves' disease are autoimmune diseases involving the thyroid, but Hashimoto's results in hypothyroidism (low thyroid function), whereas Graves' results in hyperthyroidism (overactive thyroid). Both diseases.
0 Views
View Answer
  19.2   True/False Questions   1) Clostridium perfringens causes necrotizing fasciitis.   2) M protein is a virulence factor associated with group A streptococci.   3) Humans are the only hosts of Rickettsia rickettsii. 4) Because they are common soil saprobes, dermatophytes are fungi that are not contagious in humans.   5) Chromoblastomycosis is rarely a severe disease and can.
0 Views
View Answer
  24.3   Short Answer Questions   1) Because the __________ is shorter in females than in males, it can be a portal of entry for pathogens.   2) The fetus absorbs nutrients and oxygen from the mother's bloodstream through the __________.   3) Glycogen is converted to acid in the vagina by ________, thereby contributing to an.
0 Views
View Answer
    21) Influenzaviruses are exhibiting increased resistance to which of the following drugs? A) amantadine B) oseltamivir C) zanamivir D) acyclovir E) ribavirin   22) The CDC reports concern about a new influenza strain designated A/Bali/2/2010 (H5N2). This nomenclature means A) the virus is a type A with antigens HA 5 and NA 2 isolated in Bali in February.
0 Views
View Answer
  20.2   True/False Questions   1) Cryptococcal meningitis can affect both healthy and immunocompromised individuals.   2) Trypanosoma brucei infections are characterized by cyclic waves of parasitemia that occur roughly every 7 to 10 days.   3) An example of a spongiform encephalopathy is mad cow disease.   4) Fungi rarely infect the central nervous system. 5) Human diploid cell.
0 Views
View Answer
  19.4   Essay Questions   1) Explain the relationship between chickenpox and shingles, paying special attention to the pathogenic processes and transmission of each of these diseases. 2) Describe the natural defenses of the skin that prevent many infections of this area.     .
1 Views
View Answer
    31) Where in a tapeworm would you expect to find fertilized eggs? A) the neck region of the strobila B) at the end of the strobila C) inside the scolex D) outside the cuticle E) in all proglottids   32) Tapeworms are usually transmitted to humans through ingestion of A) cysticerci. B) gravid proglottids. C) tapeworm eggs. D) mature tapeworms. E) tapeworm.
0 Views
View Answer
    21) Infection with which of the following species of Plasmodium is most likely to be fatal? A) P. malariae B) P. vivax C) P. ovale D) P. falciparum E) All of these can cause a fatal infection.   22) Schizogony is an important aspect of which of the following diseases? A) plague B) malaria C) toxoplasmosis D) Chagas' disease E) schistosomiasis   23) Dengue.
0 Views
View Answer
    31) Historically, physicians have used a procedure called xenodiagnosis to diagnose which of the following diseases? A) malaria B) toxoplasmosis C) yellow fever D) Chagas' disease E) schistosomiasis   32) Which of the following diseases is a major problem for AIDS patients? A) Chagas' disease B) toxoplasmosis C) hemorrhagic fevers D) Lyme disease E) brucellosis   33) Which of the following statements concerning Toxoplasma.
0 Views
View Answer
  3) Compare and contrast pneumococcal and mycoplasmal pneumonia.   4) Describe the various ways in which the respiratory system is protected from invasion by pathogens. 5) Describe the pathogenesis of tuberculosis, paying special attention to the characteristics of Mycobacterium tuberculosis that make it so pathogenic.       .
5 Views
View Answer
  19.1   Multiple-Choice Questions   1) The skin is an effective barrier against invading microbes because A) the outer layers of cells are dead. B) the surface is covered in salt. C) it is well supplied with blood vessels to flush microbes from the surface. D) no microbes are able to survive on the surface. E) the outer.
9 Views
View Answer
    21) Syphilis can be transmitted A) by sexual contact. B) from mother to fetus. C) by fomites. D) both by sexual contact and from mother to fetus. E) by sexual contact, by fomites, and from mother to fetus.   22) The noninfective, obligately intracellular forms of chlamydia are called A) elementary bodies. B) phagosomes. C) pseudohyphae. D) glomerular capsules. E) reticulate bodies.   23).
2 Views
View Answer
  20.4   Essay Questions   1) Compare and contrast the pathogenicity of Clostridium botulinum and Clostridium tetani, including mechanisms of action of their toxins and disease manifestations. 2) Discuss the two types of poliovirus vaccines available, including the advantages and disadvantages of each.       .
1 Views
View Answer
  24.2   True/False Questions   1) The risk of developing toxic shock syndrome is increased by the use of super-absorbent tampons.   2) Gonorrhea in women is always asymptomatic.   3) Genital herpes and genital warts are both caused by human herpesviruses .   4) The normal microbiota of the vagina help maintain a vaginal pH of around 7.5.   5).
0 Views
View Answer
  22.1   Multiple-Choice Questions   1) Which of the following is part of the upper respiratory system? A) larynx B) trachea C) bronchi D) pharynx E) alveoli   2) Which of the following is considered part of the microbiota of the lower respiratory system? A) Staphylococcus aureus B) Streptococcus pneumoniae C) Streptococcus pyogenes D) Pneumocystis jiroveci E) Haemophilus influenzae   3) The designation "group A," used to.
7 Views
View Answer
    21) Acyclovir is a chemotherapeutic agent used to treat A) smallpox. B) anthrax. C) acne. D) herpes. E) measles.   22) Shingles, or herpes zoster, is caused by the same virus that causes A) smallpox. B) German measles. C) measles. D) whitlows. E) chickenpox.   23) Common skin warts are the result of infection with A) poxviruses. B) herpesviruses. C) papillomaviruses. D) moriliviruses. E) coxsackieviruses.   24) Some strains of Papillomavirus.
1 Views
View Answer
  23.1   Multiple-Choice Questions   1) Which of the following is an organ of the gastrointestinal tract? A) the salivary glands B) the gallbladder C) the esophagus D) the pancreas E) the liver   2) Where in the digestive tract does the absorption of water take place? A) the large intestine B) the small intestine C) the rectum D) the stomach E) the esophagus   3) Which.
10 Views
View Answer
  21.4   Essay Questions   1) Explain the difference between bacteremia and septicemia, and describe some of the factors that can lead to septicemia.   2) Compare and contrast bubonic and pneumonic plague. 3) List and describe the three stages of malaria, paying attention to the various forms of the protozoan parasite present in each stage.
0 Views
View Answer
  23.3   Short Answer Questions   1) The internal surface of the small intestine folds into finger-like projections called __________ to increase the surface area for absorption. 2) Viridans streptococci are alpha-hemolytic Gram-positive cocci most often found in the __________ cavity.   3) Commonly called trench mouth during World War I, acute necrotizing ulcerative.
0 Views
View Answer
  22.2   True/False Questions   1) The seriousness of Coccidioides infections can be attributed to the cycle of formation and rupture of spherules.   2) Haemophilus influenzae is a common cause of sinus infections.   3) Pneumocystis jiroveci infects only immunocompromised patients.   4) Microscopic evaluation of suitable specimens is a useful way of diagnosing histoplasmosis. 5) Hantavirus pulmonary syndrome.
1 Views
View Answer
    31) Tsetse flies transmit A) African sleeping sickness. B) variant Creutzfeldt-Jakob disease. C) trachoma. D) St. Louis encephalitis. E) Venezuelan equine encephalitis.   32) All of the following diseases can be fatal if untreated EXCEPT A) primary amebic meningoencephalopathy. B) trachoma. C) rabies. D) tetanus. E) cryptococcal meningitis.   33) Variant Creutzfeldt-Jakob disease can be prevented by avoiding A) contact with mosquitoes. B) contaminated waterways. C) consumption.
0 Views
View Answer
    21) Which of the following hepatitis viruses usually produces subclinical infections? A) HAV B) HBV C) HCV D) HDV E) HEV   22) The intracellular parasite usually acquired in contaminated drinking water which causes a persistent watery diarrhea is A) hepatitis A virus. B) Cryptosporidium parvum. C) Entamoeba histolytica. D) Vibrio cholerae. E) norovirus.   23) Which of the following conditions usually results in.
0 Views
View Answer
  22.3   Short Answer Questions   1) Loeffler's medium was developed especially to culture the bacterium that causes __________.   2) Cell death and tissue destruction result from the action of __________ toxin produced by Bordetella pertussis.   3) The smallest free-living microbes are __________ 4) Mycoplasmas are unique among prokaryotes because of the presence of __________.
1 Views
View Answer
    21) Listeria monocytogenes pathogenesis is directly related to its ability to A) produce a powerful toxin. B) form endospores. C) produce a polysaccharide capsule. D) live and reproduce inside its host's cells. E) resist most antimicrobial agents.   22) Which of the following causes of viral meningitis is transmitted by the fecal-oral route? A) equine encephalitis virus B) California.
0 Views
View Answer
    11) Which of the following is a defining characteristic of coliforms? A) They are Gram-positive bacilli. B) They are found in the intestinal tracts of humans and animals. C) They ferment lactose. D) They are strictly anaerobic. E) They are never pathogenic.   12) Escherichia. coli O157:H7 is primarily associated with which of the following foods? A) ground.
3 Views
View Answer
    11) The chief diagnostic sign of brucellosis is A) petechiae. B) jaundice. C) "bull's eye" rash. D) fever which recurs at 24 hour intervals. E) fever which cycles every 72 hours.   12) Which of the following statements concerning Francisella is FALSE? A) It resists phagocytosis. B) Humans are its only known host. C) It is extremely infectious. D) It cannot.
3 Views
View Answer
  19.3   Short Answer Questions   1) Streptococci that secrete enzymes and toxins capable of destroying muscle and fat tissue cause a disease formally known as necrotizing __________.   2) Immunization with __________ provides protection against smallpox. 3) Chickenpox and __________ are caused by the same virus.   4) Aspirin should never be given to children or.
2 Views
View Answer
  23.2   True/False Questions   1) Salmonella is part of the normal microbiota of virtually all vertebrates except humans.   2) Cholera toxin is composed of five A subunits and one B subunit. 3) All tapeworms are intestinal parasites that completely lack digestive systems.   4) Complete recovery from hepatitis A infection occurs 99% of the time.   5) Vomiting.
0 Views
View Answer
  21.3   Short Answer Questions   1) The release of bacterial toxins into the blood leads to __________.   2) Bacterial infection of the membrane lining the heart chambers and covering the valves is called __________. 3) When bacteria in the bloodstream invade the bones, this leads to a painful condition called __________.   4) Undulant fever is.
0 Views
View Answer
    11) Which of the following causative agents of bacterial meningitis is transmitted by contaminated food? A) Neisseria meningitidis B) Streptococcus agalactiae C) Haemophilus influenzae D) Listeria monocytogenes E) Streptococcus pneumoniae   12) Which of the following is the least common cause of bacterial meningitis? A) Neisseria meningitidis B) Streptococcus agalactiae C) Haemophilus influenzae D) Listeria monocytogenes E) Streptococcus pneumoniae   13) The type of.
4 Views
View Answer
    11) Which of the following statements is TRUE concerning diphtheria? A) No effective vaccine is available to prevent infection. B) A diffuse rash is the major sign of diphtheria. C) The signs and symptoms of the disease are directly caused by a bacterial toxin. D) The pseudomembrane is easily removed by surgery. E) A microscopic.
2 Views
View Answer
  20.1   Multiple-Choice Questions   1) Nervous system control of voluntary muscles, perception, and thought is localized in the A) cerebellum. B) cerebrum. C) spinal cord. D) brain stem. E) meninges.   2) Functions of the meninges include A) support for the brain and spinal cord. B) transmission of signals from the peripheral nervous system. C) protection from external shock. D) production of neurotransmitters. E).
6 Views
View Answer
    11) Which of the following is associated with Candida infections? A) gummas B) pseudohyphae C) reticulate bodies D) pelvic inflammatory disease E) lymphogranuloma venereum   12) Untreated infection of males with Neisseria gonorrhoeae may result in A) gummas. B) sterility. C) orchitis. D) glomerulonephritis. E) penile cancer.   13) Ophthalmia neonatorum is an infection caused by A) Neisseria gonorrhoeae. B) Staphylococcus aureus. C) Gardnerella vaginalis. D) Candida albicans. E).
3 Views
View Answer
  3) Both necrotizing fasciitis and gas gangrene are diseases characterized by rapid, spreading tissue necrosis. Compare and contrast the infectious agents, the pathology and treatment. 4) Explain why Pseudomonas aeruginosa is described as a "medical puzzle."   5) Explain why smallpox vaccination is still being considered and debated, even though smallpox has.
1 Views
View Answer
  3) Compare and contrast African sleeping sickness and primary amebic meningoencephalopathy.   4) Describe the pathogenesis associated with Trypanosoma brucei that makes it impossible for infected individuals to ever become immune to the pathogen. 5) Describe how Chlamydia trachomatis causes blindness.       .
3 Views
View Answer
    31) Sporotrichosis is more commonly known as A) scabies. B) ringworm. C) white piedra. D) herpangina. E) rose-gardener's disease.   32) A man is suffering severe foot pain in the area of what looks like a large wart. He reports he has had the wart for some time, and the pain and swelling have developed slowly. A.
0 Views
View Answer
  24.4   Essay Questions   1) Explain why a female who has a history of gonorrhea infections is more likely to have an ectopic pregnancy.   2) Some areas of the genitourinary tract are normally sterile, whereas other areas have a variety of microbiota. Describe the defense mechanisms of the genitourinary tract that contribute to.
1 Views
View Answer
    11) A specific wavelength of blue light can be used to treat A) swimmer's ear. B) RMSF. C) acne. D) cat scratch disease. E) bacteremia.   12) Cat scratch disease is caused by A) Rickettsia rickettsii. B) Pseudomonas aeruginosa. C) Streptococcus pyogenes. D) Bartonella henselae. E) Staphylococcus aureus.   13) Anthrax derives its name from which of the following aspects of the disease? A) the.
4 Views
View Answer