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Q. Select all the major and clinically important spore-forming bacteria Bacillus anthracisAspergillus flavusLactobacillus acidophilusClostridium perfringensHaemophilus influenzae Answer: Bacillus anthracis and Clostridium perfringens

Q. All of the following statements are correct about the most common bacteriological media called sheep blood agar that is used in the microbiology laboratory, Except It consists of 5% of sheep bloodUsed for the culture of common fastidious bacteriaIt is used for the culture of hemolytic ...

Q. Which of the following culture media is used for the routine laboratory isolation of Salmonella and Shigella spp? Xylose lysine deoxycholate agarThiosulfate citrate bile salts agarMannitol salt agarBile esculin agar Answer: Xylose lysine deoxycholate agar

Q. Which of the following is the selective media used for the cultivation and isolation of Neisseria gonorrhoeae and N. meningitidis? Buffered charcoal- yeast extract agarThayer martin agarXylose lysine deoxycholate agarBile esculin agar Answer: Thayer martin agar

Q. Mannitol Salt agar constitutes of high salt concentration that is used as both selective and differential culture media for the isolation of which of the following gram-positive cocci? Klebsiella sppStreptococcus sppStaphylococcus sppPseudomonas spp Answer: Staphylococcus spp

Q. Which of the following media is one of the commonly used media for the proper isolation of gram negative pathogens such as Haemophilus spp and Neisseria gonorrhoeae? Potato dextrose agarChocolate agarNutrient agarMac Conkey agar Answer: Chocolate agar

Q. Which of the following bacteria is a part of the human gut and mouth flora that is also important in making some fermented dairy products? Candida albicansLactobacillus acidophilusStaphylococcus aureusMicrococcus luteus Answer: Lactobacillus acidophilus

Q. Which of the following bacteria have a hemolytic property that can grow well in blood agar? Bacillus anthracisProteus vulgarisStreptococcus pyogenesCandida albicans Answer: Streptococcus pyogenes

Q. All of the statements regarding Bacillus anthracis are true, Except The causative agent of smallpoxNonhemolytic colonies appear on Blood agarCommonly transmitted from animals to humansEndospore-forming bacteria Answer: The causative agent of smallpox

Q. Clostridium perfringens on agar can show all of the following cultural characteristics, Except? MicroaerophilicSpore-formingH2S productionHaemolysis (alpha and beta) Answer: Microaerophilic