Metachromatic granules are seen in?
Correct Answer: Cornybacterium
Description: ANSWER: (A) corynebacteriumREF: Ananthnarayan 8th edition page 238Metachromatic granules are inclusion bodies in bacterial cells that alter the colour of particular stains. Methylene blue stains metachromatic granules pink; not blue. In corynebacteria, the metachromatic granules are composed of polyphosphates and act as energy storage sites.Features of corynebacterium:Gram-positive, catalase positive, non-spore-forming, non-motile, rod-shaped bacteria that is straight or slightly curved.The bacteria group together in a characteristic way, wThich has been described as the form of a "V", "palisades", or "Chinese lettersThey may also appear elliptical. They are aerobic or facultatively anaerobic, chemoorganotrophs, with a 51-65% genomic G:C contentGranules known as babes emst or volutin granules composed of polymetaphosphate are seenSelective media: cysteine-tellurite blood agar or tinsdale medium rapid growth: loeffler's serum slope
Category:
Microbiology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now