GCSE AQA Biology Defence Mechanisms
Defence Mechanisms topic
- Created by: Leah
- Created on: 25-02-11 10:14
Other questions in this quiz
2. What is the role of platelets?
- They help to form a scab over a cut to prevent pathogens getting into the wound
- They cover your body in hard skin when they think that part may be under attack from a virus
- There are no such things as platelets
- They line your throat and act as a trampoline pushing all of the harmful disease causing pathogens away
3. What part does mucus play in preventing disease causing pathogens from getting into your body?
- It is a liquid which traps all of the pathogens and makes you urinate them out
- It is a strong barrier covering all of your internal organs and body cells
- It is a sticky substance which catches the pathogens and moves them down into your gut
- Everytime something enters your body, it makes you cough so that anything harmful leaves your body
4. Some pathogens still get into your body where they meet the secondary barrier. Your white blood cells of your...
- Digestive system
- Nervous system
- Immune system
- Kidneys
- Throat
5. Some white blood cells produce antibodies. What are antibodies and what do they do?
- Chemicals which target particular bacteria or viruses and destroy them.
- A message which tells muscles to be stronger in order to fight the disease
- Tell the glands to secrete hormones which digest the pathogens
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