How do poisons typically act to harm the body?

How do poisons typically act to harm the body?

• A. By slowing nearly all bodily functions
• B. By interfering with normal neurologic function
• C. By causing burns and damage to either external or internal organs
• D. By changing the normal metabolism of cells or by destroying them

Answer: (D)

Poisons harm primarily by altering how cells metabolize substances or by killing cells. When a toxin disrupts enzymes, blocks energy production, or damages cell membranes, cells can’t function properly and may die. This cellular-level disruption translates into organ dysfunction and systemic illness. A classic example is a toxin that blocks the mitochondria’s ability to generate energy, causing rapid cellular failure. While some poisons cause specific effects like nerve disruption or local burns, the overarching way poisons injure the body is through changing cellular metabolism or destroying cells. The other options describe particular outcomes, but they don’t capture the general mechanism that underlies most toxic effects.

Poisons harm primarily by altering how cells metabolize substances or by killing cells. When a toxin disrupts enzymes, blocks energy production, or damages cell membranes, cells can’t function properly and may die. This cellular-level disruption translates into organ dysfunction and systemic illness. A classic example is a toxin that blocks the mitochondria’s ability to generate energy, causing rapid cellular failure. While some poisons cause specific effects like nerve disruption or local burns, the overarching way poisons injure the body is through changing cellular metabolism or destroying cells. The other options describe particular outcomes, but they don’t capture the general mechanism that underlies most toxic effects.