BIOL 2117L/Microbiology Laboratory Dichotomous Key for Haemolysis (Bishop) Haemo

Question

BIOL 2117L/Microbiology Laboratory Dichotomous Key for Haemolysis (Bishop) Haemolysis (hemolysis) testing is often used for distinguishing Gram (+) bacterial from one another, specifically the Streptococci sp, Staphylococci sp, and Enterococci sp. Bacterial alpha-hemolysis results in the oxidation of iron contained within hemoglobin, which will leave a green pigmentation in the BA (Blood Agar) surrounding a alpha-hemolytic bacterial colony. Bacterial beta-hemolysis results in the complete destruction of red blood cells, which will leave a cleared (or loss of color) within the BA surrounding a beta-hemolytic bacterial colony Bacterial gamma-hemolysis (majority) does not result in oxidation or hemolysis on BA, leaving an unchanged appearance around the bacterial colony. Potential Gram(+)Bacteria Streptococcus agalactiae Streptococcus pneumoniae Mycobacterium phlei Staphyloccus aureus Staphylococcus epidermitis Streptococcus pyogenes *Streptococcus salivarius Enterococcus faecalis Using the bacterial species listed above, construct a dichotomous key to separate the species from one another according to hemolytic reaction on BA (next page/over).

Explanation / Answer

If you found this answer helpful then please rate it. Comment if you have any problem in understanding this answer.

Related Questions

Navigate

• Browse (All)
• Browse B
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.