Podcast
Questions and Answers
What differentiates micrococci from staphylococci in terms of their appearance?
What differentiates micrococci from staphylococci in terms of their appearance?
- Micrococci are motile, but staphylococci are non-motile.
- Micrococci are smaller than staphylococci.
- Micrococci appear in tetrads, while staphylococci appear in clusters. (correct)
- Micrococci are gram-negative, and staphylococci are gram-positive.
Which of the following is a characteristic of streptococci?
Which of the following is a characteristic of streptococci?
- Catalase-positive
- Motile bacteria
- Facultative anaerobes (correct)
- Spore-forming bacteria
What is the main product of glucose fermentation by homofermentative streptococci?
What is the main product of glucose fermentation by homofermentative streptococci?
- Carbon dioxide
- Ethanol
- Lactic acid (correct)
- Acetic acid
Which streptococci are exceptions by being pigmented?
Which streptococci are exceptions by being pigmented?
Where are viridans group streptococci typically located in the body?
Where are viridans group streptococci typically located in the body?
Based on Bergey’s Classification, which group of streptococci fails to grow at 10°C but can be recovered at temperatures up to 45°C?
Based on Bergey’s Classification, which group of streptococci fails to grow at 10°C but can be recovered at temperatures up to 45°C?
What type of test is used to identify Group B Streptococci?
What type of test is used to identify Group B Streptococci?
How is Group B Streptococci transmitted during birth?
How is Group B Streptococci transmitted during birth?
Which enzyme dissolves hyaluronic acid in the host's connective tissue?
Which enzyme dissolves hyaluronic acid in the host's connective tissue?
What is a characteristic of Group B Streptococci as mentioned in the text?
What is a characteristic of Group B Streptococci as mentioned in the text?
What is the role of Streptokinase in the pathogen's activities?
What is the role of Streptokinase in the pathogen's activities?
Which test is used for scarlet fever susceptibility?
Which test is used for scarlet fever susceptibility?
What is the typical appearance of metachromatic granules in the cytoplasm of the rod under a stained smear?
What is the typical appearance of metachromatic granules in the cytoplasm of the rod under a stained smear?
Which of the following is NOT a characteristic of diphtheria caused by toxigenic strains of C.diphtheriae?
Which of the following is NOT a characteristic of diphtheria caused by toxigenic strains of C.diphtheriae?
In which anatomical sites is respiratory diphtheria most commonly found?
In which anatomical sites is respiratory diphtheria most commonly found?
What is the habitat of the bacteria that causes diphtheria?
What is the habitat of the bacteria that causes diphtheria?
Which characteristic is NOT associated with the clinical manifestation of diphtheria?
Which characteristic is NOT associated with the clinical manifestation of diphtheria?
What gives the rod a 'Chinese letters' or 'palisades' appearance under microscopic observation?
What gives the rod a 'Chinese letters' or 'palisades' appearance under microscopic observation?
What is the most common E.rhusiopathiae infection in humans?
What is the most common E.rhusiopathiae infection in humans?
How do humans usually acquire E.rhusiopathiae infection?
How do humans usually acquire E.rhusiopathiae infection?
Which occupation group is at the greatest risk of E.rhusiopathiae infection?
Which occupation group is at the greatest risk of E.rhusiopathiae infection?
What is the characteristic appearance of E.rhusiopathiae colonies in a gelatin stab culture?
What is the characteristic appearance of E.rhusiopathiae colonies in a gelatin stab culture?
How can swine erysipelas be prevented?
How can swine erysipelas be prevented?
What is the majority characteristic of Lactobacillus species related to antibiotic resistance?
What is the majority characteristic of Lactobacillus species related to antibiotic resistance?
What crystal formation is used to differentiate B. thuringiensis from B. cereus?
What crystal formation is used to differentiate B. thuringiensis from B. cereus?
Which characteristic helps distinguish Clostridium perfringens from other Clostridium species?
Which characteristic helps distinguish Clostridium perfringens from other Clostridium species?
Which agar medium shows a double zone of hemolysis due to hemolysin and tetanolysin production?
Which agar medium shows a double zone of hemolysis due to hemolysin and tetanolysin production?
Which of the following characteristics is NOT true for Bacillus cereus?
Which of the following characteristics is NOT true for Bacillus cereus?
What is a distinguishing characteristic of Bacillus subtilis?
What is a distinguishing characteristic of Bacillus subtilis?
Which of these organisms shows a reverse CAMP test (bowtie) result?
Which of these organisms shows a reverse CAMP test (bowtie) result?
