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How are the alveoli adapted to their function? Identify 3 ways
Gas exchange <ul><li>Alveoli are very good at exchanging gases because… </li></ul><ul><li>They have a LARGE surface area <...
Dangers of Smoking Learning Objectives : - To understand the dangers of smoking and how they affect the respiratory system...
Tobacco Anti Smoking Ad Full Ad
Tobacco
Tobacco
Tobacco <ul><li>Tobacco contains substances which cause: </li></ul><ul><li>Lung cancer </li></ul><ul><li>bronchitis  and  ...
Smoking <ul><li>Cigarettes contain 3 harmful things: </li></ul><ul><li>NICOTINE, which is an ___________ drug that raises ...
Dangers of Smoking Learning Objectives : - To understand the dangers of smoking and how they affect the respiratory system...
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Y8 Humans 03 smoking

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Y8 lesson on smoking. Slightly modified version of this lesson on World of Teaching http://www.worldofteaching.com/powerpoints/biology/Drugs%20Effects%20on%20Our%20Bodies.ppt

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Y8 Humans 03 smoking

  1. 1. How are the alveoli adapted to their function? Identify 3 ways
  2. 2. Gas exchange <ul><li>Alveoli are very good at exchanging gases because… </li></ul><ul><li>They have a LARGE surface area </li></ul><ul><li>They have a good blood supply </li></ul><ul><li>They are moist </li></ul>CO 2 O 2
  3. 3. Dangers of Smoking Learning Objectives : - To understand the dangers of smoking and how they affect the respiratory system - To know the effects of some chemicals in cigarette smoke. - To analyse data for smoking-related illnesses.
  4. 4. Tobacco Anti Smoking Ad Full Ad
  5. 5. Tobacco
  6. 6. Tobacco
  7. 7. Tobacco <ul><li>Tobacco contains substances which cause: </li></ul><ul><li>Lung cancer </li></ul><ul><li>bronchitis and emphysema </li></ul><ul><li>Heart disease + damage to blood vessels </li></ul><ul><li>Pregnant smokers often have low weight babies due to carbon monoxide in the blood reducing the oxygen supply to the baby </li></ul><ul><li>( Carbon monoxide irreversibly combines with the haemoglobin in red blood cells) </li></ul>
  8. 8. Smoking <ul><li>Cigarettes contain 3 harmful things: </li></ul><ul><li>NICOTINE, which is an ___________ drug that raises the heart beat, narrows the arteries and so causes ____ _____ _____. This leads to heart _________. </li></ul><ul><li>TAR, which coats the lining of the _______ making them less able to take in oxygen. It also contains carcinogens which cause ______________. </li></ul><ul><li>CARBON MONOXIDE, which is a _______ ____ which joins up with ____ blood cells making them incapable of transporting _____________ around the body. </li></ul>Words – high blood pressure, oxygen, red, addictive, disease, poisonous gas, lungs, cancer
  9. 9. Dangers of Smoking Learning Objectives : - To understand the dangers of smoking and how they affect the respiratory system - To know the effects of some chemicals in cigarette smoke. - To analyse data for smoking-related illnesses.

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