If Sub A has an LD50 of 0.5 mg/kg and Sub B has an LD50 of 5 mg/kg under the same test, which is more poisonous?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Study for the Utah Aquatic Pesticide Exam. Utilize flashcards and multiple-choice questions with hints and explanations. Prepare thoroughly for your certification!

Multiple Choice

If Sub A has an LD50 of 0.5 mg/kg and Sub B has an LD50 of 5 mg/kg under the same test, which is more poisonous?

Explanation:
LD50 is the dose that will kill half of the test population under the same conditions, so a lower LD50 means greater acute toxicity. Here, Sub A needs only 0.5 mg/kg to be lethal for 50% of subjects, while Sub B needs 5 mg/kg. Since Sub A requires ten times less substance to reach that lethal threshold, Sub A is more poisonous. This comparison assumes identical test conditions (same species, exposure route, etc.).

LD50 is the dose that will kill half of the test population under the same conditions, so a lower LD50 means greater acute toxicity. Here, Sub A needs only 0.5 mg/kg to be lethal for 50% of subjects, while Sub B needs 5 mg/kg. Since Sub A requires ten times less substance to reach that lethal threshold, Sub A is more poisonous. This comparison assumes identical test conditions (same species, exposure route, etc.).

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy