Which term denotes a poisonous organic substance produced by living organisms?

Which term denotes a poisonous organic substance produced by living organisms?

• A. Toxin
• B. Toxic Metals
• C. Toxoplasma Gondii
• D. Thermometer

Answer: (A)

A toxin is a poisonous organic substance produced by living organisms. It covers poisons made by bacteria, plants, or animals and can be a protein or a small molecule that harms biological systems. Examples include botulinum toxin from bacteria or ricin from castor beans, and many venoms are toxins delivered by bites or stings. Toxic metals are inorganic elements, not organic substances produced by living organisms, so they don’t fit. Toxoplasma gondii is a parasite, not a poisonous substance, and a thermometer is just an instrument. Therefore, the right term is toxin.

A toxin is a poisonous organic substance produced by living organisms. It covers poisons made by bacteria, plants, or animals and can be a protein or a small molecule that harms biological systems. Examples include botulinum toxin from bacteria or ricin from castor beans, and many venoms are toxins delivered by bites or stings. Toxic metals are inorganic elements, not organic substances produced by living organisms, so they don’t fit. Toxoplasma gondii is a parasite, not a poisonous substance, and a thermometer is just an instrument. Therefore, the right term is toxin.