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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
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During exercise Student A: heart rate 170 while Student B: heart rate 140 Which student is more fit ?
Student B
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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
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-------------- cause paralysis of the cilia
Tar
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What are the special features of the alveoli ?
Enormous surface area , thin walls , moist lining and very good blood supply
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--------------- bind to the red blood cells so it cant carry oxygen
Carbon monoxide
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The air sacs where gas exchange takes place in are called
Alveoli
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Give an example of a social drug
Caffeine
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plaque is -------------------
a mixture of fats , cholesterol and blood cells
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--------------- is a hallucinogenic drug that makes people hear or see things differently
Cannabis
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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
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Which ingredient in cigarettes causes the user to get addicted?
Nicotine
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