MDARD Michigan Core Pesticide Applicator Practice Exam

Which statement about pesticides inside the body is true?

1. Most pesticides used today are stored in our body fat

2. The kidneys filter pesticides from the blood into the urine

3. Most chemical breakdown of toxic substances occurs wherever the pesticide is first absorbed

4. Pesticides accumulate indefinitely in the liver

The correct answer is: The kidneys filter pesticides from the blood into the urine

The statement regarding the kidneys filtering pesticides from the blood into the urine is true because the kidneys play a vital role in the body's detoxification process. When pesticides enter the bloodstream, they are often metabolized by the liver, and the resulting metabolites or unchanged pesticides can then be filtered by the kidneys. This filtration process allows for the elimination of these substances from the body through urine. The kidneys have specialized structures called nephrons that filter blood and remove waste products, including harmful chemicals. As part of the body's mechanism to manage and excrete toxic substances, this filtration process helps reduce the concentration of pesticides and other harmful chemicals in the bloodstream, thereby contributing to overall health and safety. Other statements may suggest different mechanisms or storage aspects related to how the body handles pesticides but do not accurately reflect the filtering process performed by the kidneys.