Assistant Laboratory Animal Technician (ALAT) Practice Exam

Which of the following is NOT one of the most common types of microorganisms found in the animal facility?

1. Bacteria

2. Protozoa

3. Fungi

4. Molds

The correct answer is: Molds

The presence of microorganisms in an animal facility greatly impacts animal health, research outcomes, and overall biosecurity. Among the various microorganisms, bacteria, protozoa, and fungi are commonly encountered in these environments. Bacteria are abundant and diverse, playing critical roles in processes such as decomposition and nutrient cycling in both natural and controlled environments. Protozoa, though often less prevalent than bacteria, can still be found in specific conditions, particularly in water sources within the facility. Fungi are also quite common; they can thrive in various environments and contribute to the microbial ecology of the animal facility. Molds, while a type of fungus, may not be as prevalent or as significant in standard laboratory animal facilities compared to the other types mentioned. They often require specific conditions to thrive and may not be present in the same abundance or frequency as bacteria, protozoa, or general fungi. Understanding the role and prevalence of these microorganisms is essential for maintaining a safe and healthy environment for laboratory animals, ensuring the integrity of research data, and implementing effective biosecurity measures.