BIOLOGY IN HUMAN WELFARE
HUMAN HEALTH AND DISEASE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which one of the following is false about toxicology?
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the study of toxic substances
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Almost any chemical be harmful if taken in, or ingested, in large enough amounts
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the toxic effect of a substance has nothing to do with the body size
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The damage to health from exposure to a given dose is the response
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Explanation:
Detailed explanation-1: -Toxicity is a general term used to indicate adverse effects produced by poisons. These adverse effects can range from slight symptoms like headaches or nausea, to severe symptoms like coma and convulsions and death.
Detailed explanation-2: -The toxicity of a substance usually depends on the following factors: Form and innate chemical activity. Dosage, especially dose-time relationship. Exposure route.
Detailed explanation-3: -The toxicity of a substance depends on three factors: its chemical structure, the extent to which the substance is absorbed by the body, and the body’s ability to detoxify the substance (change it into less toxic substances) and eliminate it from the body.
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