A Microbiologist Inoculates Staphylococcus Aureus into a Culture Medium

question 58

Multiple Choice

A microbiologist inoculates Staphylococcus aureus into a culture medium.Following incubation, both Staphylococcus aureus and Staphylococcus epidermidis are determined to be growing in this culture.What is the most likely explanation?

• A)The microbiologist used too much inoculum.
• B)The culture medium was selective.
• C)The culture medium was differential.
• D)The culture was contaminated.
• E)The incubation temperature was incorrect.

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Definitions:

Epiphyseal Plate

A growth plate in long bones where new bone tissue forms, enabling growth in length.

Diaphysis

The central shaft of a long bone, distinct from the ends of the bone, which are called epiphyses.

Condyle

A rounded protuberance at the end of some bones, forming an articulation with another bone.

Osteoblasts

Cells responsible for bone formation, playing a crucial role in bone growth and repair.