A pathogen is defined as a microorganism capable of producing serious disease.

A pathogen is defined as a microorganism capable of producing serious disease.

• A. True
• B. False
• C. It is defined as any organism capable of causing disease
• D. It refers only to viruses

Answer: (A)

A pathogen is a disease-causing agent. In microbiology, this usually means a microorganism—such as bacteria, viruses, fungi, or protozoa—that has the potential to cause disease in a host. The statement is true because the core idea is about the ability to produce disease, not about always causing only severe illness or about larger organisms. While severity can vary from mild to life-threatening, the defining feature of a pathogen is its capacity to cause disease. Viruses are common examples, but many other microorganisms can be pathogens as well. The options that imply it’s only viruses or that it covers all organisms are not as precise as the standard definition, which centers on disease-causing microorganisms.

A pathogen is a disease-causing agent. In microbiology, this usually means a microorganism—such as bacteria, viruses, fungi, or protozoa—that has the potential to cause disease in a host. The statement is true because the core idea is about the ability to produce disease, not about always causing only severe illness or about larger organisms. While severity can vary from mild to life-threatening, the defining feature of a pathogen is its capacity to cause disease. Viruses are common examples, but many other microorganisms can be pathogens as well. The options that imply it’s only viruses or that it covers all organisms are not as precise as the standard definition, which centers on disease-causing microorganisms.