Gram Positive Bacteria


Gram Positive Bacteria

Exam Yield

Probability of getting 1 Question from this chapter 165%
Ease of Revision 7.6 / 10

You may get upto 2 questions from this Chapter.

Question Pattern

In spite of being listed as a single Chapter, this actually includes many different Bacteria.

Nevertheless, the questions are from predictable areas

  • Bacterial Toxins
  • Special culture media
  • Unique appearances in culture
  • Antimicrobial resistance mechanisms
  • Important clinical syndromes

From the look of it, you may not need to memorize every single aspect of the Biochemical profile. Just read the marquee points there.

Recent Questions

Questions on this chapter from recent NEET and AIIMS examinations have been about
  • Molar tooth colonies
  • Albert’s stain
  • Post exposure prophylaxis for tetanus
  • Staphylococcus aureus
  • Types of motility of bacteria
  • Contact based isolation is employed for which diseases?
  • Draughtsman appearance of colonies of Pneumococcus
  • Lysogenic conversion
  • Actinomycosis
  • Mechanism of action of bacterial toxins
  • Name the staphylococcal infection that is not toxin mediated.
  • MRSA prevention in a hospital ward
  • Geobacillus stearothermophilus
  • Citron bodies
  • Enterococci
  • Viridans group causing dental caries
  • MC causative organism for lobar pneumonia
  • Bacillus anthracis.
  • Botulism

Suggested Revision

  • Selective media for Corynebacterium diphtheria
  • Elek test
  • Infective Endocarditis – common organisms
  • Types of capsules in bacteria
  • Lancefield grouping of streptococci
  • Streptococcal antigens & cross-reaction with human tissues
  • Clostridium perfringens
  • C.difficle infection
  • Organisms and selective Culture Media
  • Nagler reaction
  • Quellung reaction
  • Food Poisoning

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