Immune system words

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Across

3. An agent that either kills or inhibits the growth of a microorganism.

4. Any substance that, when introduced into the body, is recognized by the immune system.

5. A soluble protein molecule produced and secreted in response to an antigen, which is capable of binding to that specific antigen

Down

1. An autoantibody directed against a substance in the cell's nucleus.

2. Serum that contains antibodies.

3. Antibodies that interlock with and inactivate toxins produced by certain bacteria.

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