Microbiology Continuous Assessment Test 1
56 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following characteristics depict well the Enterobacteriaceae group, EXCEPT?

  • All are gram negative
  • All are facultative anaerobes
  • All are capsulated
  • Grow on bile containing agar (correct)

    • Which one of the following characteristics is not true regarding Enterobacteriaceae?

  • All bacteria in the group are oxidase negative (correct)
  • Shigella is a non-lactose fermenter
  • Enterobacter is a lactose fermenter
  • Salmonella ferment glucose to form hydrogen sulfide and turn TSI medium black

    • All of the following pathotypes of E. coli infection can lead to bloody diarrhea, EXCEPT:

  • Enteroinvasive
  • Enterohemorrhagic
  • Enterotoxigenic
  • Enteropathogenic (correct)

    • ___ is a common cause of Travelers' diarrhea.

    <p>Enterotoxigenic <em>E. coli</em></p> Signup and view all the answers

    All of the following are true with regard to E. coli gastroenteritis management, EXCEPT.

    <p>Antibiotics are used only in severe disease</p> Signup and view all the answers

    ___ does not cause enteric fever.

    <p><em>S. hirschfeldii</em></p> Signup and view all the answers

    Regarding gastroenteritis due to Salmonella enteritidis, statement ______ is not true.

    <p>The infection does not enter the bloodstream</p> Signup and view all the answers

    With regard to salmonellosis diagnosis, pick the most correct statement.

    <p>Blood is a specimen of choice for diagnosis of <em>S. typhi</em> in third week of infection</p> Signup and view all the answers

    The following are the features of Shigellosis, EXCEPT.

    <p><em>S. sonnei</em> is the major cause of shigellosis outbreaks</p> Signup and view all the answers

    Regarding Shigellosis, which one of the following statements is true?

    <p>Rectal prolapse is one of the infection's complications</p> Signup and view all the answers

    The following are true with regard to the diagnosis of Shigella infection, EXCEPT.

    <p>Urine can be used as specimen in case stool is unavailable</p> Signup and view all the answers

    ______ is not true regarding Enteric fever.

    <p>Carrier state is uncommon in human</p> Signup and view all the answers

    Choose the most correct statement with regard to vaccines.

    <p>Inactivated vaccine cannot grow in vaccinated individual and is less effective</p> Signup and view all the answers

    With regard to Major Histocompatibility complex (MHC)

    <p>Are also known as human leukocyte antigens</p> Signup and view all the answers

    All mentioned below are disadvantages of Immune tolerance, EXCEPT

    <p>Both B cells and T cells can be made tolerant</p> Signup and view all the answers

    With regard to hypersensitivity type I, one of the following is wrong

    <p>The primary cellular component in this hypersensitivity is neutrophils</p> Signup and view all the answers

    In hypersensitivity type II, the following occurs, EXCEPT:

    <p>The regulation of reaction is done by platelates, neutrophils, and eosinophils</p> Signup and view all the answers

    ______ is a consequence of hypersensitivity type III.

    <p>Rheumatic fever</p> Signup and view all the answers

    Below may result with Autoimmune diseases, EXCEPT:

    <p>Increase muscle strength</p> Signup and view all the answers

    One of the following is mostly preferred test in diagnosis of Hashimoto's thyroiditis

    <p>Anti-microsomal antibody test</p> Signup and view all the answers

    All are systemic Autoimmune diseases, EXCEPT:

    <p>Alopecia areata</p> Signup and view all the answers

    Both below are important properties of staphylococcal bacteria, EXCEPT:

    <p>All are catalase negative</p> Signup and view all the answers

    Which one of the listed bacteria is a causative of Acute bacteria endocarditis

    <p>Staphylococcus aureus</p> Signup and view all the answers

    All are true with regard to Methicillin Resistant Staphylococcus aureus (MRSA), EXCEPT

    <p>Sensitive to Penicillin</p> Signup and view all the answers

    All of the following pathotypes of E. coli infection can lead to bloody diarrhea, EXCEPT:

    <p>Enteropathogenic <em>E. coli</em></p> Signup and view all the answers

    All of the following are true with regard to E. coli gastroenteritis management, EXCEPT.

    <p>Antibiotics are used only in severe disease</p> Signup and view all the answers

    Regarding gastroenteritis due to Salmonella enteritidis, statement...... is not true.

    <p>The infection does not enter the bloodstream.</p> Signup and view all the answers

    The following are true with regard to the diagnosis of Shigella infection, EXCEPT.

    <p>Urine can be used as specimen in case stool is unavailable</p> Signup and view all the answers

    ... is not true regarding Enteric fever.

    <p>Carrier state is uncommon in human</p> Signup and view all the answers

    .... is a consequence of hypersensitivity type III

    <p>Rheumatic fever</p> Signup and view all the answers

    All are true with regard to Methicillin Resistant Staphylococcus aureus (MRSA), EXCEPT

    <p>Sensitive to Penicillin</p> Signup and view all the answers

    ...is a toxic mediated infection due Staphylococcus aureus

    <p>Scalded skin syndrome</p> Signup and view all the answers

    Mentioned below are false with regard to the features of a hemolytic streptococci, EXCEPT:

    <p>Non-hemolytic</p> Signup and view all the answers

    All are virulence factors for Group A streptococci bacteria, EXCEPT:

    <p>Capsule is anti-phagocytosis</p> Signup and view all the answers

    Listed below are true with relation to Rheumatoid arthritis, EXCEPT:

    <p>Affects men three times more than females</p> Signup and view all the answers

    One of the mentioned below is not the function of central tolerance:

    <p>Acts as positive selection</p> Signup and view all the answers

    Which of the following is among biological factors that help to get rid of pathogens from the body?

    <p>Normal flora of the skin</p> Signup and view all the answers

    Which of the following is among chemical factors that help to get rid of pathogens from the body?

    <p>The low pH of sweat</p> Signup and view all the answers

    Which of the following innate immunity is among mechanical factors that prevent pathogens from entering the body?

    <p>Flushing action of tears and saliva</p> Signup and view all the answers

    Which of the following is a correct statement regarding commensalism?

    <p>Organisms that colonize body surface and do not cause any harm</p> Signup and view all the answers

    Cytoplasmic membrane of the bacteria cell has the following function, EXCEPT:

    <p>Synthesize of precursors of cell wall</p> Signup and view all the answers

    ...is bacteria growth in presence and absence of oxygen.

    <p>Facultative</p> Signup and view all the answers

    The commonest resident bacteria of large intestine

    <p>Bacteroides</p> Signup and view all the answers

    One of the following is not method of dry heat sterilization process

    <p>Radiation</p> Signup and view all the answers

    In the transmission of cholera, the following is untrue

    <p>Incubation period is 6 hours to 3 days</p> Signup and view all the answers

    Which of the following bacteria produces infection of wounds and burns, giving rise to blue-green pus?

    <p>Pseudomonas aeruginosa</p> Signup and view all the answers

    A bite by an infected flea may predispose to which of the following bacteria?

    <p>Yersinia pestis</p> Signup and view all the answers

    Food and water contaminated with poultry feces is the major source of the following bacteria.

    <p>Campylobacter</p> Signup and view all the answers

    Which of the following bacteria causes food poisoning and is self-limiting?

    <p>Campylobacter</p> Signup and view all the answers

    A basic Immunological (Ig) unit is composed of:

    <p>2 identical heavy and 2 identical light chains</p> Signup and view all the answers

    The Fab region of an Ig is responsible for:

    <p>Binding to antigen</p> Signup and view all the answers

    Which of the following statements does not apply to IgG:

    <p>Appears early in the primary immune response.</p> Signup and view all the answers

    IgA in seromucous secretions

    <p>Is dimeric</p> Signup and view all the answers

    IgE

    <p>Binds strongly to mast cells</p> Signup and view all the answers

    Acts both as a primary pathogen and an opportunistic pathogen.

    <p>Shigella</p> Signup and view all the answers

    The following characteristics depict well the Enterobacteriaceae group, EXCEPT.

    <p>All are capsulated</p> Signup and view all the answers

    Study Notes

    Microbiology Continuous Assessment Test 1

    • General Instructions: Write name on all answer sheets; exam has two parts (70% and 20%) with multiple choice, extended matching, fill-in-the-blank, and short answer questions. Section A answered on a Zipgrade sheet, others on provided answer sheet.

    Part 1: Section A - Multiple Choice

    • Question 1: Shigella acts as both a primary and opportunistic pathogen.
    • Question 2: Enterobacteriaceae are gram-negative, non-capsulated, and facultative anaerobes (except Klebsiella). They are not all capsulated.
    • Question 3: Salmonella ferment glucose to produce hydrogen sulfide, turning TSI medium black. All are oxidase negative.
    • Question 4: Enterohemorrhagic E. coli is a cause of bloody diarrhea. Enterotoxigenic E. coli is a common cause of Traveler's diarrhea. Enteroinvasive E. coli can lead to bloody diarrhea. Pathogen of E.coli infections includes Enteropathogenic E. coli.
    • Question 5: All of these are true of E. coli gastroenteritis management EXCEPT. Differentiation of pathotypes is important. Antibiotic sensitivity is important. Fluid replacement is a primary treatment. Antibiotics are used only in severe cases.
    • Question 6: Salmonella typhi, Salmonella paratyphi, Salmonella choleraesuis, and Salmonella hirschfeldii can cause enteric fever; only S. choleraesuis does not. Human is one of the reservoirs of infection which include poultry and eggs, and it is self-limiting in 2-5 days. Infection usually does not enter the bloodstream.
    • Question 7: Regarding salmonellosis diagnosis: Urine is a specimen of choice for diagnosis of S. typhi in the first week of infection, and blood in the third. Sources include poultry and eggs.
    • Question 8: Additional questions about specific characteristics, statements, or features of certain pathogens are present but not extracted.

    Part 1: Section B - Extended Matching Items

    • Question 8: Extended matching items questions are included, but specific items are not extracted from the document.

    Part 2: Section C & D

    • Question 9: Fill-in-the-blank and short answer questions and are included but not extracted from the text.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Hubert Kairuki Memorial University Microbiology and Immunology Continuous Assessment Test 1 (PDF)

    Description

    This quiz is designed to assess your understanding of key microbiology concepts, focusing on pathogens such as Shigella and various strains of E. coli. It includes multiple choice, fill-in-the-blank, and short answer questions, testing both basic knowledge and applied concepts related to gastrointestinal diseases.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser