Thayer-Martin Agar Typically Contains a Combination of Antibiotics: Vancomycin, Colistin

question 28

Multiple Choice

Thayer-Martin agar typically contains a combination of antibiotics: vancomycin, colistin, nystatin, and trimethoprim. Please select the TRUE statement.

• A) The antibiotics in Thayer-Martin agar do not kill Gram-negative cells.
• B) The antibiotics in the Thayer-Martin medium lyse the sheep RBCs.
• C) Neisseria gonorrhoeae is not sensitive to the included antibiotics.
• D) Fastidious bacteria are never impacted by common antibiotics.
• E) Sheep blood cell in a growth medium protects bacteria from the impact of antibiotics.

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Definitions:

Species Richness

The number of different species represented in an ecological community, landscape, or region, indicating its biodiversity.

Parasitic Relationship

A non-mutual relationship between species, where one species, the parasite, benefits at the expense of the other, the host.

Pathogen

An organism, typically a microorganism, that causes disease in its host, including viruses, bacteria, fungi, and parasites.

Mutualistic Symbiont

An organism that lives in a mutualism, providing reciprocal benefits to its host without harm.