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PLEASE DO NOT WRITE ON THIS TEST Biology Test - 3B There is only one correct answer for each question. Answer each question by filling in the correct circle on your answer sheet. 1. Which part of your respiratory system contracts to pull in air? A Trachea B Bronchioles C Alveoli D Diaphragm 2. Which of these body systems is involved in delivering oxygen to your cells? A Digestive System B Skeletal System C Circulatory System D Reproductive System 3. Which one of these statements about breathing is true? A Breathing is not the same as respiration B The cells in your toe receive less oxygen than any other cells in your body C Not all cells need a supply of oxygen D Breathing and respiration mean the same thing 4. Which one of these things is not a product of respiration? A Carbon Dioxide B Energy C Oxygen D Water 5. Which of these exercises requires mostly anaerobic respiration? A Marathon Running B Weightlifting C Cycling D Football 6. Which of these is a product of anaerobic respiration? A Ascorbic Acid B Hydrochloric Acid C Nitric Acid D Lactic Acid 7. Which type or types of respiration do plants perform? A Aerobic Respiration only B Anaerobic Respiration only C Photosynthesis only D Aerobic and Anaerobic Respiration 8. A student sets up an experiment with a plant growing inside a sealed plastic bag. Water condenses on the inside of the bag as the plant grows. Where does the water come from? A Photosynthesis B Precipitation C Respiration D Reproduction 9. A student blows into a cup of lime water. What will happen to the lime water? A It will turn clear B It will turn reddish brown C It will turn black D It will turn cloudy white 10. Choose the correct word to complete the word equation for aerobic respiration: ____________ + oxygen carbon dioxide + water + energy A B C D Fat Amino Acids Glucose Protein 11. Why might an organism switch from anaerobic to aerobic respiration when oxygen becomes available? A Because aerobic respiration releases more energy from glucose B Because anaerobic respiration releases more energy from glucose C Because aerobic respiration produces carbon dioxide D Because anaerobic respiration does not produce water 12. A student measures the concentration of gases in the air. She then measures the concentration of gases in her breath when she exhales. The concentration of some of the gases is different. Which gases would you expect to change? A Concentration of oxygen only B Concentration of oxygen, carbon dioxide and water vapour C Concentration of oxygen and carbon dioxide only D Concentration of oxygen, carbon dioxide, water vapour and nitrogen 13. Why is it impossible for your body to respire anaerobically for long periods of time? A Lactic acid would build up in your muscles B Carbon dioxide would build up in your muscles C Glucose would build up in your muscles D Ethanol would build up in your muscles 14. What is the definition of a microbe? A An organism that can give you a disease B An organism that is found growing on old food C An organism that is too small to see with the naked eye D A type of bacteria 15. Your body can store energy for future use in respiration. Which of these stores is not a genuine place that energy is stored in the body? A The muscles B The liver C Body fat stores D The stomach 16. How is oxygen transported around the body? A By blood plasma B By red blood cells C By white blood cells D By dissolving in water 17. Which of the following is not true about the effect of exercise on your body? A You breathe more quickly B Your heart beats faster C Less oxygen and glucose get to your muscles D Your pulse rate increases 18. Which food would be best to eat to give you energy for a lot of exercise? A Chocolate B Bread C Chicken D Lettuce 19. What problems would you expect someone with mitochondrial disease to face? A High energy, restless legs and headaches B Nausea, temperature and vomiting C Low energy and problems with brain development D Digestive discomfort and fever 20. Plants have stomata (pores) on the underside of their leaves. What gases are exchanged through the stomata? A Oxygen and Carbon Dioxide B Oxygen only C Oxygen, Carbon Dioxide and Water vapour D Carbon Dioxide only