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LD50 Review

Last updated over 3 years ago

5 questions

1

1

1

1

1

Question 1

1.

What is the LD50 of a substance?

The amount needed to kill 100% of the test population

The amount needed to kill 50% of the test population

The level of addictiveness of a toxin

The measure of how common a poison is

Question 2

2.

How is LD50 typically tested for?

Administering different doses of toxin to mice and observing results

Administering different doses of toxin to humans and observing results

Analyzing sources of the toxin and reading historical cases

Analyzing past records of poisonings

Question 3

3.

Which substance in the table would be considered most toxic?

Lead

Nicotine

Hydrogen peroxide (70%)

Aluminum hydroxide

Question 4

4.

Which substance in the table would be considered least toxic?

Lead

Nicotine

Hydrogen peroxide (70%)

Aluminum hydroxide

Question 5

5.

Use the table to help you answer the question: Of children weighing 20 kg, what amount of nicotine would kill 50% of them?

10 mg

20 mg

100 mg

200 mg