Chemical and physical barriers and the immune system Crossword

This printable crossword puzzle on the topic of Microbiology has 12 clues. Answers range from 4 to 16 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Enzyme present in tears that breaks down bacteria
In the nose, microorganisms are filtered out by __________
In the nose, throat and breathing tubes, microorganisms are trapped by sticky ___________
This is a chemical barrier in the stomach to kill microorganisms
The breathing tubes are lined with tiny hair-like structures called _________
What part of your blood forms a scab?
Cells of your immune system are called _________ _________ ________
A microorganism that causes disease is called a ____________
A protein on the surface of a pathogen which causes an immune response is called an ________________
Another word for white blood cell is _______________
The immune system reacts quicker during the secondary immune response because of _________________ cells
White blood cells produce ________________ which help get rid of the pathogen