Lab 15: Gram positive cocci 5. What are the oxygen requirements of Gram positive cocci, such as staphylococci and streptococci? Do they possess catalase? 6. What is the function of coagulase? 7. How do bacteria use coagulase to protect themselves against the host? 8. What medium do we use to test for coagulase? Can you replace this medium with TSA? 9. What type of medium is blood agar? a) What is hemolysis? b) Describe three types of hemolysis c) What type of hemolysis could be caused by normal flora bacteria? d) What type of hemolysis is associated with pathogenesis? 10. What is Novobiocin? How do we use Novobiocin to differentiate staphylococci? 11. What is capsule? What is the function of the capsule? 12. What kind of streptococci can form capsule? 13. What is the appearance of capsule in capsule staining?
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Oxygen requirements of Gram positive cocci: Staphylococci are facultative anaerobes, while Streptococci are aerotolerant anaerobes. $$\textbf{Staphylococci: Facultative Anaerobes}$$ $$\textbf{Streptococci: Aerotolerant Anaerobes}$$ Show moreā¦
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