Question
Explain the concepts of dose, threshold dose, and LD50 in toxicology. Differentiate between acute and chronic effects of toxicants with appropriate examples.
Answer :
Word Count : 472
In toxicology, the concept of dose refers to the amount of a substance or toxicant administered or absorbed by an organism, usually expressed in terms of mass of substance per unit body weight, such as milligrams per kilogram (mg/kg). The dose determines the biological response, as even essential substances can become harmful if consumed in excessive amounts. Toxicologists study dose-response relationships to understand how varying levels of exposure influence physiological effects. The threshold dose is the minimum dose of a toxicant that produces a detectable effect on an organism. Below this dose, no adverse ____ ___ ____ _____ __________.
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In toxicology, the concept of dose refers to the amount of a substance or toxicant administered or absorbed by an organism, usually expressed in terms of mass of substance per unit body weight, such as milligrams per kilogram (mg/kg). The dose determines the biological response, as even essential substances can become harmful if consumed in excessive amounts. Toxicologists study dose-response relationships to understand how varying levels of exposure influence physiological effects. The threshold dose is the minimum dose of a toxicant that produces a detectable effect on an organism. Below this dose, no adverse ____ ___ ____ _____ __________.
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