Respiration and the respiratory system in humans 0.0 / 5 ? BiologyRespiration and exerciseGCSEWJEC Created by: MaddiejamesxCreated on: 09-04-18 22:43 In aerobic respiration, what happens to the food which is broken down? Its energy is released for use 1 of 22 What is the usual food molecule to be respired? Glucose 2 of 22 Give the equation for aerobic respiration Glucose+Oxygen ----> Carbon Dioxide+Water+Energy 3 of 22 When does anaerobic respiration take place? When oxygen is in short supply or absent and during intense activity 4 of 22 Give the equation for anaerobic respiration Glucose ----> Lactic Acid + Energy 5 of 22 what percentage of oxygen do we inspire? 21 6 of 22 What percentage of oxygen to we expire? 16 7 of 22 What percentage of Carbon dioxide do we inspire? 0.04 8 of 22 What percentage of carbon dioxide do we expire? 4 9 of 22 What percentage of nitrogen do we inspire and expire? 79 10 of 22 Trachea windpipe- leads from the nasal cavity, mouth and nose and towards the lungs (strengthened by cartilage and rings) 11 of 22 Bronchi Each Bronchi leads to one lung 12 of 22 Alveoli Where oxygen enters the lungs and Carbon dioxide is removed 13 of 22 Lungs Organ made up of bronchi, alveoli and the tissue surrounding them 14 of 22 Ribs Protect the lungs and help with breathing 15 of 22 Diaphragm Sheet of muscle underneath the lungs which help to breathe 16 of 22 How does mucus do to prevent lung infections? Traps dust and microbes 17 of 22 What does cilia do? Move back and forth constantly to push the mucus up to the trachea 18 of 22 What do carcinogens do? Cause cancer 19 of 22 What does tar do? Clogs the bronchi and alveoli 20 of 22 What does nicotine do? Damages the lungs 21 of 22 What does carbon monoxide do? Makes it hard for red blood cells to carry oxygen 22 of 22
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