A substance produced by a microorganism that can cause disease or damage is called a

A substance produced by a microorganism that can cause disease or damage is called a

• A. Toxin
• B. Pathogen
• C. Vector
• D. Immunogen

Answer: (A)

A toxin is a poisonous substance produced by a microorganism that can cause disease or damage to the host. Toxins can disrupt cellular functions or trigger harmful inflammation, and they come in forms like exotoxins released by bacteria or endotoxins associated with their cell walls. This distinguishes a toxin from a pathogen, which is the microorganism itself that can cause disease; from a vector, which is an agent that transmits a pathogen; and from an immunogen, which is something that stimulates an immune response. Examples include botulinum toxin and diphtheria toxin, illustrating how the harmful effect comes from the substance produced by the microbe.

A toxin is a poisonous substance produced by a microorganism that can cause disease or damage to the host. Toxins can disrupt cellular functions or trigger harmful inflammation, and they come in forms like exotoxins released by bacteria or endotoxins associated with their cell walls. This distinguishes a toxin from a pathogen, which is the microorganism itself that can cause disease; from a vector, which is an agent that transmits a pathogen; and from an immunogen, which is something that stimulates an immune response. Examples include botulinum toxin and diphtheria toxin, illustrating how the harmful effect comes from the substance produced by the microbe.