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The Respiratory System 1. Air leaves the trachea and passes through the: bronchioles bronchi capillaries 2. The tiny sacs in the lungs are called: bronchioles capillaries alveoli 3. In the alveoli carbon dioxide: passes out of the blood passes into blood passes away from the air 4. When we exhale, pressure in the chest: reduces remains the same increases 5. Respiration is the release of energy from glucose in the: lungs blood muscles 6. During exercise working muscles need more: carbon dioxide water oxygen 7. Insufficient oxygen supplies are available during: strenuous exercise warm up normal exercise 8. During anaerobic exercise there is a build up of: oxygen water lactic acid 9. Gaseous exchange takes place in the lungs in the: bronchioles bronchi alveoli 10. The percentage of oxygen in exhaled air is about: 26% 36% 16% 11 – Complete the following statement using the word bank below. MUSCLES ALVEOLI o2 BLOOD Co2 Gaseous Exchange: As ___________ passes through the ___________ in the lungs it ‘deposits’ the waste products (_______ and nitrogen) which it has picked up around the body. It then ‘picks up’ the ________ which has been breathed in and transports it to the working _____________ around the body. 12. Aerobic Respiration: __________ + glucose = Energy + Water + ______________ 13. Anaerobic Respiration: Glucose = Energy + __________________ 14. Describe what happens to the diaphragm when you breathe in (inspiration) and when you breathe out (expiration). (2 marks) …………………………………………………………… …………………………………………………………… …………………………………………………………… ……………………………………………………………