Biology Topic Practice

How Antitoxins Work

Some bacteria make you ill by releasing toxins; your immune system counters this with antitoxins.

Do antitoxins kill the bacteria directly?

What is How Antitoxins Work?

"An antitoxin is an antibody that is capable of neutralizing a specific toxin."

Question 1

Why can antitoxins help defend the body against some bacterial diseases?

Question 2

Choose the best explanation: why can antitoxins help defend the body against some bacterial diseases?

Question 3

Select why can antitoxins help defend the body against some bacterial diseases?

Neutralising Poisons

Bacteria produce toxins (poisons) that damage your cells.

Lymphocytes produce specific antitoxin molecules.

Antitoxins bind to toxins and neutralise their harmful effects.

Exam Tip

Antitoxins are like "antidotes" produced by your own body.

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