MDARD Michigan Core Pesticide Applicator Practice Exam

What is the definition of a carcinogen?

1. A substance causing allergies

2. A substance that can cause cancer

3. A substance that is benign

4. A substance that prevents cancer

The correct answer is: A substance that can cause cancer

The definition of a carcinogen is a substance that can cause cancer. This means that exposure to such substances can lead to changes in cellular structure or function that may promote the development of cancer over time. Carcinogens can be found in various forms, including chemicals, certain viruses, and radiation. Understanding what constitutes a carcinogen is crucial for pesticide applicators and others who work in environments where they may encounter potentially harmful substances, as it influences their safety practices and regulatory compliance. The other choices pertain to different health-related definitions: allergens cause allergic reactions, benign substances do not cause harm, and substances that prevent cancer are termed chemopreventive agents. Each of these terms has distinct meanings that do not align with the definition of a carcinogen.