Describe basic identification techniques used to differentiate bacteria.
DefinitionDescription should include basic techniques used to differentiate bacteria, such as the techniques of
- Gram stain morphology (differentiates between gram-positive cocci and gram-negative rods)
- catalase (differentiates between Staphylococcus and Streptococcus)
- coagulase (differentiates between Staphylococcus aureus and other species of Staphylococcus)
- indole (differentiates between E. coli and other gram-negative organisms).
- How could Gram stain morphology be useful in diagnosing an infection with Staphylococcus vs. E. coli?
- How is the catalase test useful in differentiating between Staphylococcus and Streptococcus?
- Which gram-positive cocci is catalase and coagulase positive? Why is this important to know?
- What is the significance of a positive indole when identifying E. coli vs. other gram-negative rods?
Related Standards of Learning
The student will read, interpret, analyze, and evaluate a variety of nonfiction texts.
- Use critical thinking to generate and respond logically to literal, inferential, and evaluative questions about the text(s).
- Identify and synthesize resources to make decisions, complete tasks, and solve specific problems.
- Analyze multiple texts addressing the same topic to determine how authors reach similar or different conclusions.
- Recognize and analyze use of ambiguity, contradiction, paradox, irony, overstatement, and understatement in text.
- Analyze false premises claims, counterclaims, and other evidence in persuasive writing.