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MICROBIOLOGY
  • Mike Kgwatlha

  • 問題数 56 • 6/12/2024

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    問題一覧

  • 1

    Which of the following is not a GNC

    pseudomonas aeruginosa

  • 2

    Which of the following is coagulase positive

    staphylococcus aureus

  • 3

    Coagulase is a protein enzyme produced by several microorganisms that enables the conversion of ?

    fibrinogen to fibrin

  • 4

    Staphylococcus aureus shows which hemolytic reaction on Blood agar

    Beta-Hemolysis

  • 5

    Which of the following bacterias are catalase positive?

    Corynebacterium,Listeria Monocytogenes,Bacillus cereus

  • 6

    Which Small Gram Positive Bacilli can hydrolyse Esculin?

    Listeria Monocytogenes

  • 7

    CAMP test is utilised specifically for which common suspected bacteria

    Streptococcus agalactiae

  • 8

    Identify organism A & B in respect to susceptibility test of Novobiocin disc

    A.Staphylococcus saprophyticus

  • 9

    This bacteria is able to form chains and commonly as to mimic “bamboo rods” on a gram stain

    Bacillus anthracis

  • 10

    Catalase which is the enzyme found in staph’s converts A.? Into B.?

    A. Hydrogen peroxide

  • 11

    Name the following test displayed on the image

    Deoxyribonuclease test

  • 12

    Which of the following microbes will best represent Staphylococcus aureus on MSAgar?

    C

  • 13

    The microbe usually causes UTI in young sexually active females

    Staphylococcus saprophyticus

  • 14

    Identity the following tests results for each subsequent alphabet respectively

    A. streptococcus pyogenes

  • 15

    This particular bacteria after autolysis occurs the colonies give a characteristic “draughtsman colonies” appearance

    streptococcus pneumoniae

  • 16

    Endocarditis the disease associated with the infection of the heart’s inner lining and cardiac valves of the heart usually is caused by which microbe?

    staphylococcus epidermidis

  • 17

    The gram-stain results of this bacteria is positive and under the microscope it appears as “Chinese lettering” or “picket-fence” arrangements

    Corynebacteria diphtheriae

  • 18

    Identify the primarily suspected microbe for this test. Hint: It exhibits a tumbling motility

    Listera Monocytogenes

  • 19

    Hoyles Tellurite agar is employed for isolation and identification of which microbes?

    Corynebacteria diphtheriae

  • 20

    Given the media it’s Tinsdale A) which microorganism is primarily suspected and B) state the principle of the media respectively

    A. corynebacteria diphtheriae

  • 21

    Neisseria meningitis ferments only glucose. T or F?

    false

  • 22

    Neisseria gonorrhoeae ferments glucose, maltose and sucrose

    false

  • 23

    Moraxella catarrhalis ferments the following sugars:-

    none

  • 24

    This colonies of this bacteria will slide on the media when touched commonely known as “hocky puck” colonies appearence

    moraxella catarrhalis

  • 25

    All the microbes listed are oxidase negative except?

    Pseudomonas aeruginosa

  • 26

    Lactose is a disaccharide consisting of A. And B. joined by a C. Which enzymes are present in microbes that are fast lactose fermenters (Name D & E)

    A. glucose

  • 27

    Some Non-Lactose fermenters are ONPG positive

    false

  • 28

    Which of the listed bacterias produce hydrogen sulphide?

    Salmonella & Proteus spp

  • 29

    All the listed enterobacteriaceae are Urease positive except?

    Salmonella

  • 30

    All of the above mentioned microorganisms are indole positive except?

    serratia marcescens

  • 31

    What is the definitive test employed to identify Streptococcus pyogenes

    Lance field Group A

  • 32

    India ink is utilised in the lab to identify which organism?

    cryptococcus neoformans

  • 33

    A. Identify the test displayed on the below microscopic image and B. Name which specific microbe is utilised to detect

    A. germ tube test

  • 34

    Identify the following microorganism that presents the following colony morphology

    streptococcus pneumoniae

  • 35

    This gram-negative bacteria produces a characteristic “metallic sheen” appearance on blood agar

    pseudomonas aeruginosa

  • 36

    The illustrated bacteria below shows results of a double zone Hemolysis on blood agar consisting of an inner clear zone and an outer hazy zone. Identify the following bacteria to be commonly suspected respectively

    clostridium perfringes

  • 37

    What is the name of the species of the microbe presented below?

    proteus spp

  • 38

    Give the name of the following bacteria displayed below. Hint : it is associated with infections from ingestion of dairy products or delicase meats

    listeria monocytogenes

  • 39

    The listed microbacterias below are caustive agents of food poisoning except?

    streptococcus agalactiae

  • 40

    It is the most primary cause of meningitis in neonates

    streptococcus agalactiae

  • 41

    All of the provided enterobacteriaceae are ONPG positive except?

    shigella flexneri

  • 42

    Select the appropriate name of the growth of the presented microorganism below. Hint: Take note of the filaments projections from the surrounding colonies

    Yeast

  • 43

    A.Provide the name of the disc method shown below and B. which test is employed to determine . C. State which disc is positive or negative respectively

    A. Nitrocefin method

  • 44

    Give atleast 4 ingredients found in this media

    1. Phenol red- pH indicator 2. Lactose-for enumerating fermenting bacterias 3. Sodium deoxycholate-Inhibits the growth of GPC’s 4.Xylose-identifying xylose utilising microorganisms

  • 45

    It is a media for differentiating gram negative bacilli based on the fermentation of Dextrose,Sucrose,Lactose and on hydrogen sulphate production

    triple sugar iron agar

  • 46

    It is a selective media for the isolation of pseudomonas aeruginosa from pus,sputum and etc. Hint: It produces yellow fluorescent colonies in a dark box fitted with a source of ultraviolet irradiation

    cetrimide agar

  • 47

    What are the two primary ingredients (factors)commonly found in heated blood agar for the enrichment of the medium to grow certain fastidious bacterial species?

    cell free haemoglobin (X)

  • 48

    Medium used for cultivating,differentiating and enumerating pathogens in urine. Hint: it prevents Proteus from swarming

    cystine lactose electrolyte deficient (CLED) agar

  • 49

    It is a differential medium useful in the detection of lecithinase,lipase and protease activity Hint: lecithinase activity produces a zone of opacity immediately around the growth streak

    egg yolk media

  • 50

    A. Identify the media depicted below B.State it’s employed usage in clinical laboratory procedures C. Give atleast 3 ingredients found in the media

    A. Lowenstein jensen media

  • 51

    A. This is a Selective media to differentiate between lactose and non-lactose fermenters B. Give 2 ingredients found in the media respectively

    A. MacConkey agar

  • 52

    A. It is a selective and differential media useful in recovery and identification of staphylococci from specimens containing mixed flora B. Name 2 ingredients found in the media

    A. Mannitol salt agar

  • 53

    A. What is the media used to isolate N.gonorrhoeae and N.meningitis from specimens containing mixed normal flora B. Give out atleast 2 ingredients that are denoted in the plate

    A. New york city agar/ Thayer martin agar

  • 54

    This agar is used for the cultivation of fungi, and chloramphenicol is added to make it selective for fungi

    sabourauds dextrose agar

  • 55

    A. It is an enrichment broth used for the recovery of lowe numbers of salmonella and shigella from stool and other specimens containing large amounts of mixed bacteria B. Name atleast 2 ingredients found in the media

    A. selenite F broth

  • 56

    A. It is used for differentiating Salmonella and Shigella species based on hydrogen sulphide production, indole and motility B. Give atleast 3 ingredients found in the media

    A. Sulphide Indole Motility medium (SIMS)