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Biology Revision

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  • Tar bind to the red blood cells so it cant carry oxygen. True or False
    False
  • During exercise Student A: heart rate 170 while Student B: heart rate 140 Which student is more fit ?
    Student B
  • Face drooping to one side , can’t hold their hand in the air and their speech is hard to understand these are symptoms of
    Brain stroke
  • -------------- cause paralysis of the cilia
    Tar
  • What are the special features of the alveoli ?
    Enormous surface area , thin walls , moist lining and very good blood supply
  • --------------- bind to the red blood cells so it cant carry oxygen
    Carbon monoxide
  • The air sacs where gas exchange takes place in are called
    Alveoli
  • Give an example of a social drug
    Caffeine
  • plaque is -------------------
    a mixture of fats , cholesterol and blood cells
  • --------------- is a hallucinogenic drug that makes people hear or see things differently
    Cannabis
  • State the difference between "Breathing " and Respiration
    Breathing is the physical process where you take in oxygen and release carbon dioxide while Respiration is the chemical reaction happening
  • Which ingredient in cigarettes causes the user to get addicted?
    Nicotine