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Physical and chemical barriers Flashcards | StudBud

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Physical and chemical barriers

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How the human body defends against pathogens

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Questions 5

Answers

1
Lysozymes are found in:
stomach
tears
White blood cells
skin
2
Cilia and mucus help to...
cough
Keep airways and lungs free from bacteria
breathe
remove oxygen from the body
3
Mucus is a chemical barrier
Ture
False
4
Hydrochloric acid...
kills bacteria on food in the stomach
Helps to stop blood flow from cuts
is produced in the bones
lines the windpipe
5
Why is it important that our old skin cells flake off?
We would look unpleasant
So that the pathogens come off with the old skin cells
So that we have smooth skin
We would get ill