Starbucks Food Safety Practice Exam

What is Staphylococcus aureus?

1. A bacterium that is commonly carried by healthy human beings

2. A virus responsible for the common cold

3. A type of parasite found in seafood

4. An antibiotic produced by bacteria

The correct answer is: A bacterium that is commonly carried by healthy human beings

Staphylococcus aureus is a bacterium that is commonly carried by healthy human beings, making option A the accurate choice. This bacterium is found on the skin and in the nasal passages of many individuals without causing any harm. However, it can become pathogenic under certain conditions, leading to various infections, especially if it enters the body through wounds or cuts. In the context of food safety, it is particularly important to recognize that Staphylococcus aureus can produce toxins that cause food poisoning if food is contaminated. The bacteria can multiply rapidly in improperly stored foods, and even cooking may not eliminate the risk of illness if toxins have already formed. The other options do not accurately describe Staphylococcus aureus. A virus responsible for the common cold refers to agents such as rhinoviruses, which are distinctly different from bacteria. Similarly, parasites found in seafood do not apply here, as Staphylococcus aureus is not a parasitic organism. Finally, an antibiotic produced by bacteria is a different biological concept, as it relates to substances like penicillin that are produced by some bacteria but are unrelated to Staphylococcus aureus itself. Understanding what Staphylococcus aureus is and its implications in food safety is crucial for maintaining health and preventing foodborne