Topic 2 - Cystic fibrosis and lung function
Test made using edexcel AS biology text book from the topic 2 section of unit 1
- Created by: Phil
- Created on: 07-05-13 09:40
Other questions in this quiz
2. Why might failure to move mucus create a problem?
- mucus traps pathogens (germs) by sticking to them and keeping them in the bronchi
- pathogenic organisms (germs can multiply and cause infection or illness
- sticky mucus clogs up the lungs so that oxygen finds it hard to pass through
3. Why does swallowing mucus reduce risk of infection?
- the mucus reacts with chemicals in the body to make it impossible for micro-organisms to survive
- Acid in the stomach kills the micro-organisms
- white blood cells in the blood attack any foriegn organisms
4. which of these pairs of organs enables rapid exchange?
- Liver and Stomach
- Kidneys and capilleries
- Heart and lungs
5. why would a land living organisms not be likely to use their entire external surface for gaseous exchange?
- pathogenic organisms may be exchanged through the surface quickly
- the surface can function as protection and the organism would suffer from dehydration
- the external layer would absorb too much and become over hydrated
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