1) What is digested food used for in our bodies? a) To provide energy b) To provide energy, for growth and to provide chemicals to make new substances c) To provide oxygen d) To provide carbon dioxide 2) What is the name of the process that releases energy in our bodies? a) Photosynthesis b) Excretion c) Reproduction d) Respiration e) Diffusion 3) What substance is used as the main energy resource in our bodies? a) Protein b) Glucose c) Oxygen d) Water 4) The word equation for aerobic respiration is: a) glucose + carbon dioxide -> water + oxygen (+ energy) b) glucose + oxygen -> water + carbon dioxide (+ energy) c) oxygen + carbon dioxide -> water + glucose (+ energy) d) oxygen + water -> glucose + dioxide (+ energy) 5) What are the symbol products for respiration? a) 6O2 + 6H2O + energy b) 6O2 + 6CO2 + energy c) 6O2 + C6H12O6 + energy d) 6O2 + energy e) 6O2 + 6H2O f) 6CO2 + 6H2O + energy 6) In what ways is burning similar to respiration? a) Both reactions produce oxygen and water b) Both reactions use oxygen and water. c) Both reactions occur in one uncontrolled step. d) Both reactions produce carbon dioxide, water and energy 7) Respiration takes place in the ... a) Chloroplast b) Nucleus c) Ribosome d) Mitochondria e) All of the above 8) Why do we breathe? a) For anaerobic respiration b) To gain the glucose needed for respiration c) To gain the oxygen and glucose needed for respiration d) To gain the oxygen needed for respiration e) To help our heart beat 9) How is oxygen transported around the body? a) Carried in red blood cells b) As a gas c) Carried in white blood cells d) Attached to glucose e) In the blood plasma 10) How is carbon dioxide transported in the blood? a) Carried in red blood cells b) As a gas c) Carried in white blood cells d) Attached to glucose e) In the blood plasma 11) The heart and blood vessels make up the: a) Breathing system. b) Digestive system. c) Nervous system. d) Circulatory system. e) Respiratory system 12) The image shows... a) Breathing system. b) Digestive system. c) Nervous system. d) Circulatory system. e) Respiratory system 13) The smallest blood vessels are called: a) Veins b) Arteries c) Capillaries d) Tributaries 14) What was missing from the previous equations? a) Chlorophyll + light b) Enzymes + light c) Enzymes in mitochondria d) Chlorophyll + enzymes 15) What does the image show? a) Diaphragm b) Trachea c) Alveolus d) Bronchi e) Bronchioles f) Intercostal muscle 16) What does the image show? a) Diaphragm b) Trachea c) Alveolus d) Bronchi e) Bronchioles f) Intercostal muscle 17) What does the image show? a) Diaphragm b) Trachea c) Alveolus d) Bronchi e) Bronchioles f) Intercostal muscle 18) The movement of particles from an area where they are in a high concentration to an area where they are in a lower concentration is called: a) Dissolving b) Transport c) Diffusion d) Excretion e) Respiration 19) The diffusion of which substance is represented by the arrow in the diagram? a) Oxygen b) Carbon dioxide c) Nitrogen d) Water 20) The air we breathe in contains: a) More oxygen and more water vapour than the air we breathe out b) More oxygen and less carbon dioxide than the air we breathe out. c) More carbon dioxide and less oxygen than the air we breathe out. d) More carbon dioxide and less water vapour than the air we breathe out. 21) Breathing rate is closely associated with which other process? a) Maintaining body temperature b) Brain activity c) Heart rate d) Rate of digestion e) Liver activity 22) Which of the following statements is incorrect? Anaeobic and aerobic respiration are different because: a) Anaerobic respiration does not produce water b) Aerobic respiration requires oxygen c) Anaerobic respiration is used when oxygen is lacking d) Anaerobic respiration does not take place in the cell e) Aerobic respiration does not produce lactic acid 23) At altitude there is less oxygen so... a) Breathing rate increases to ensure enough oxygen diffuses into our blood b) Breathing rate increases because we need more oxygen c) Breathing rate decreases because it is easier for the oxygen to diffuse into our blood d) Breathing rate decreases because we don't need as much oxygen 24) When we exercise breathing rate increases because... a) Heart rate increases b) We need to supply our muscles with more oxygen for respiration c) Our blood is moving faster d) Anaerobic respiration demands oxygen 25) The following does not happen when we breathe in... a) Intercostal muscles contract b) Diaphragm contracts c) Ribs move up an out d) Pressure increases in the lungs e) Air is forced into the lungs 26) Breathing rate was measured in someone before, during and after exercise. The person started exercising at 5 minutes and stopped exercising at 10 minutes. Why did the breathing rate not immediately go back the the resting level after 10 minutes? a) They were out of breath b) They needed to get rid of waste carbon dioxide and water c) They must not have stopped exercising d) They needed to aerobically respire to break down lactic acid e) None of the above

Respiration and breathing

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