Podcast
Questions and Answers
Which bacterium is characterized by a 'tackhead' appearance due to a swollen terminal spore?
Which bacterium is characterized by a 'tackhead' appearance due to a swollen terminal spore?
- Clostridium botulinum
- Yersinia
- Bacillus anthracis
- Clostridium tetani (correct)
What is the characteristic appearance of Corynebacterium diptheriae under a microscope?
What is the characteristic appearance of Corynebacterium diptheriae under a microscope?
- Pleomorphic, resembling a 'Chinese character' (correct)
- Rod-shaped, gram-negative
- Spiral-shaped, gram-positive
- Lancet-shaped, catalase negative
What is the selective medium for Pseudomonas aeruginosa?
What is the selective medium for Pseudomonas aeruginosa?
- Mueller Hinton agar
- Cetrimide agar (correct)
- Chocolate agar
- MacConkey agar
What is the purpose of the Elek test?
What is the purpose of the Elek test?
What is the characteristic appearance of Pseudomonas aeruginosa on MacConkey agar?
What is the characteristic appearance of Pseudomonas aeruginosa on MacConkey agar?
What is the purpose of adding zinc dust to a nitrate reduction test?
What is the purpose of adding zinc dust to a nitrate reduction test?
Which of the following organisms is a gram-positive bacterium?
Which of the following organisms is a gram-positive bacterium?
What is the primary component of the cell wall in gram-positive bacteria that is stained by Gram stain?
What is the primary component of the cell wall in gram-positive bacteria that is stained by Gram stain?
Which of the following bacteria is known for its ability to grow in slightly acidic pH?
Which of the following bacteria is known for its ability to grow in slightly acidic pH?
What is the term for the ability of bacteria to float in a zinc sulfate solution?
What is the term for the ability of bacteria to float in a zinc sulfate solution?
Which of the following bacteria is known for its characteristic 'fishy' odor?
Which of the following bacteria is known for its characteristic 'fishy' odor?
Which automated system is used for susceptibility testing?
Which automated system is used for susceptibility testing?
What is the purpose of the ONPG test in laboratory diagnosis?
What is the purpose of the ONPG test in laboratory diagnosis?
What is the morphology of Leptospira?
What is the morphology of Leptospira?
What is the purpose of the Citrate Utilization Test (Simmon's Citrate Test)?
What is the purpose of the Citrate Utilization Test (Simmon's Citrate Test)?
Which of the following is NOT a selective media?
Which of the following is NOT a selective media?
What is the function of Safranin in Gram staining?
What is the function of Safranin in Gram staining?
Which of the following bacteria is NOT associated with food poisoning?
Which of the following bacteria is NOT associated with food poisoning?
What type of toxin is produced by E. coli O157:H7?
What type of toxin is produced by E. coli O157:H7?
Which medium is commonly used to detect H2S production?
Which medium is commonly used to detect H2S production?
What is the characteristic of Mycobacterium tuberculosis?
What is the characteristic of Mycobacterium tuberculosis?
Which disease is commonly associated with pigeon droppings?
Which disease is commonly associated with pigeon droppings?
What is the best method for detecting Plasmodium species?
What is the best method for detecting Plasmodium species?
Which of the following bacteria is mismatched with its corresponding disease?
Which of the following bacteria is mismatched with its corresponding disease?
What is the characteristic growth time for rapid growing mycobacteria?
What is the characteristic growth time for rapid growing mycobacteria?
Which of the following is a mismatched characteristic of bacterial structures?
Which of the following is a mismatched characteristic of bacterial structures?
What is the characteristic of the helminth egg Trichuris trichiura?
What is the characteristic of the helminth egg Trichuris trichiura?
What is the characteristic of transmission of Salmonella subgroup III?
What is the characteristic of transmission of Salmonella subgroup III?
Which bacterium is known to cause atypical pneumonia?
Which bacterium is known to cause atypical pneumonia?
Which of the following gram-negative bacilli is oxidase positive and has a characteristic grape-like odor?
Which of the following gram-negative bacilli is oxidase positive and has a characteristic grape-like odor?
What is the causative agent of anthrax?
What is the causative agent of anthrax?
The Quellung reaction is used for serotyping which bacterium?
The Quellung reaction is used for serotyping which bacterium?
Which enteric pathogen produces a black precipitate on Hektoen enteric agar?
Which enteric pathogen produces a black precipitate on Hektoen enteric agar?
Which bacterium produces a red pigment?
Which bacterium produces a red pigment?
What is the best test for the presumptive identification of S.pneumoniae?
What is the best test for the presumptive identification of S.pneumoniae?
Which organism is commonly isolated from urethral discharge and has a fried egg appearance on culture?
Which organism is commonly isolated from urethral discharge and has a fried egg appearance on culture?
What is the most common parasite found in the Philippines?
What is the most common parasite found in the Philippines?
What is the purpose of using Oxacillin in susceptibility testing?
What is the purpose of using Oxacillin in susceptibility testing?
Which of the following bacteria is an obligate intracellular pathogen?
Which of the following bacteria is an obligate intracellular pathogen?
What is the appearance of Cryptococcus neoformans on an India ink preparation?
What is the appearance of Cryptococcus neoformans on an India ink preparation?
Which of the following bacteria produces an acid-fast toxin?
Which of the following bacteria produces an acid-fast toxin?
What is the causative agent of whooping cough?
What is the causative agent of whooping cough?
What is the purpose of the Ziehl-Neelsen stain?
What is the purpose of the Ziehl-Neelsen stain?
Which of the following bacteria is commonly associated with dental caries?
Which of the following bacteria is commonly associated with dental caries?
What is the primary medium for the cultivation of Mycobacterium tuberculosis?
What is the primary medium for the cultivation of Mycobacterium tuberculosis?
Which bacterium is known to produce a blue-green pigment?
Which bacterium is known to produce a blue-green pigment?
What is the causative agent of syphilis?
What is the causative agent of syphilis?
Which bacterium is commonly associated with biofilm formation on medical devices?
Which bacterium is commonly associated with biofilm formation on medical devices?
What is the novobiocin-resistant coagulase-negative staphylococcus?
What is the novobiocin-resistant coagulase-negative staphylococcus?
Which bacterium exhibits swarming motility on agar plates?
Which bacterium exhibits swarming motility on agar plates?
What is the characteristic growth pattern of Mycobacterium tuberculosis?
What is the characteristic growth pattern of Mycobacterium tuberculosis?
Which of the following bacteria is known to cause atypical pneumonia?
Which of the following bacteria is known to cause atypical pneumonia?
What is the primary mode of transmission for Salmonella subgroup III?
What is the primary mode of transmission for Salmonella subgroup III?
Which of the following bacteria is characterized by a metachromatic granule?
Which of the following bacteria is characterized by a metachromatic granule?
What is the primary function of Mueller Hinton agar?
What is the primary function of Mueller Hinton agar?
What is the result of a positive nitrate reduction test after addition of zinc dust?
What is the result of a positive nitrate reduction test after addition of zinc dust?
Which of the following bacteria is characterized by a 'grape-fruit' appearance on MacConkey agar?
Which of the following bacteria is characterized by a 'grape-fruit' appearance on MacConkey agar?
Which of the following stains is used to detect metachromatic granules in C. diptheriae?
Which of the following stains is used to detect metachromatic granules in C. diptheriae?
Which of the following bacteria is responsible for epidemic gastroenteritis?
Which of the following bacteria is responsible for epidemic gastroenteritis?
What type of bacteria grows on MacConkey agar EXCEPT:
What type of bacteria grows on MacConkey agar EXCEPT:
Which of the following helminth eggs do not float in zinc sulfate solution:
Which of the following helminth eggs do not float in zinc sulfate solution:
Which automated system is used for susceptibility testing:
Which automated system is used for susceptibility testing:
Which bacteria has branched hyphae and is transmitted through inhalation of soil/dust:
Which bacteria has branched hyphae and is transmitted through inhalation of soil/dust:
Which bacterium can be characterized by a 'grape-fruit' appearance in MacConkey agar?
Which bacterium can be characterized by a 'grape-fruit' appearance in MacConkey agar?
What is the purpose of the Elek test in bacteriology?
What is the purpose of the Elek test in bacteriology?
Which of the following bacteria is characterized by a 'tackhead' appearance due to a swollen terminal spore?
Which of the following bacteria is characterized by a 'tackhead' appearance due to a swollen terminal spore?
What is the primary medium for antimicrobial susceptibility testing?
What is the primary medium for antimicrobial susceptibility testing?
What is the result of adding zinc dust to a negative nitrate reduction test?
What is the result of adding zinc dust to a negative nitrate reduction test?
Which bacterium produces Shiga toxin?
Which bacterium produces Shiga toxin?
Which disease is commonly associated with pigeon droppings?
Which disease is commonly associated with pigeon droppings?
Which Plasmodium species is best detected in?
Which Plasmodium species is best detected in?
Which bacterium is responsible for swimmer's ear?
Which bacterium is responsible for swimmer's ear?
Which organism has a double zone of hemolysis on blood agar?
Which organism has a double zone of hemolysis on blood agar?
Which of the following bacteria exhibits tumbling motility at room temperature?
Which of the following bacteria exhibits tumbling motility at room temperature?
What is the primary use of chocolate agar in microbiology?
What is the primary use of chocolate agar in microbiology?
Which of the following tests is used to differentiate between group D streptococcus and enterococcus?
Which of the following tests is used to differentiate between group D streptococcus and enterococcus?
Which of the following bacteria is not an enteric pathogen?
Which of the following bacteria is not an enteric pathogen?
What is the primary purpose of a cold enrichment technique in microbiology?
What is the primary purpose of a cold enrichment technique in microbiology?
Which of the following bacteria is associated with melioidosis, a disease also known as the 'Vietnamese time bomb'?
Which of the following bacteria is associated with melioidosis, a disease also known as the 'Vietnamese time bomb'?
Which of the following bacterial colonies is characterized by a green metallic sheen on EMB agar?
Which of the following bacterial colonies is characterized by a green metallic sheen on EMB agar?
What is the primary function of Safranin in Gram staining?
What is the primary function of Safranin in Gram staining?
Which of the following bacteria is NOT associated with food poisoning?
Which of the following bacteria is NOT associated with food poisoning?
Which of the following bacteria produces a characteristic 'arrowhead' shape on agar plates?
Which of the following bacteria produces a characteristic 'arrowhead' shape on agar plates?
Which bacterium is responsible for the production of a yellow-green pigment?
Which bacterium is responsible for the production of a yellow-green pigment?
Which of the following bacteria is commonly associated with the transmission of diseases through contaminated water?
Which of the following bacteria is commonly associated with the transmission of diseases through contaminated water?
Which bacterium is known to produce a toxin that causes a severe bloody diarrhea?
Which bacterium is known to produce a toxin that causes a severe bloody diarrhea?
Which of the following bacteria is capable of metabolizing citrate as a sole source of carbon?
Which of the following bacteria is capable of metabolizing citrate as a sole source of carbon?
Which bacterium is known to produce a beta-lactamase enzyme that makes it resistant to penicillin?
Which bacterium is known to produce a beta-lactamase enzyme that makes it resistant to penicillin?
Which bacterium is characterized by producing a grape-like odor and is oxidase positive?
Which bacterium is characterized by producing a grape-like odor and is oxidase positive?
What is the causative agent of anthrax?
What is the causative agent of anthrax?
Which bacterium is responsible for 'rice-water stool'?
Which bacterium is responsible for 'rice-water stool'?
Which bacterium produces a black precipitate on Hektoen enteric agar?
Which bacterium produces a black precipitate on Hektoen enteric agar?
What is the purpose of the Quellung reaction?
What is the purpose of the Quellung reaction?
Which bacterium is urease positive?
Which bacterium is urease positive?
What is the causative agent of atypical pneumonia?
What is the causative agent of atypical pneumonia?
Which bacterium is known to cause 'fishy' odor?
Which bacterium is known to cause 'fishy' odor?
What is the characteristic of Salmonella typhi?
What is the characteristic of Salmonella typhi?
Which bacterium is associated with food poisoning?
Which bacterium is associated with food poisoning?
Which of the following bacteria is primarily transmitted through contaminated food and water?
Which of the following bacteria is primarily transmitted through contaminated food and water?
What is the characteristic morphology of the helminth egg Trichuris trichiura?
What is the characteristic morphology of the helminth egg Trichuris trichiura?
Which of the following bacteria exhibits tumbling motility at room temperature?
Which of the following bacteria exhibits tumbling motility at room temperature?
Which of the following bacteria produces a Shiga toxin?
Which of the following bacteria produces a Shiga toxin?
Which of the following media is primarily used for the isolation of Neisseria and Haemophilus?
Which of the following media is primarily used for the isolation of Neisseria and Haemophilus?
