- 3. Which energy-yielding nutrient contributes more as the duration of exercise lengthens?a) Proteinsb) Carbohydratesc) Fats
- 4. Which system does the body rely on increasingly as the intensity of exercise increases?a) Aerobic lipolytic systemb) Anaerobic systemc) Aerobic glycolytic system
- 3. Which energy source provides less energy per liter of oxygen consumed than glucose?a) Fatty acidsb) Proteinsc) Carbohydratesd) None of the above
- 1. What is the first energy pathway used by a person during physical activity?a) Aerobic pathwayb) Lactic acid systemc) Anaerobic pathwayd) None of the above
- 3. Which energy pathway provides most of the energy for short-duration, high-intensity exercise?a) Aerobic pathwayb) Lactic acid systemc) Anaerobic pathwayd) None of the above
- 4. What factors influence oxygen capabilities and energy pathways during exercise?a) Duration and availability of oxygenb) Intensity and duration of exercisec) Oxygen consumption and availability of nutrientsd) None of the above
- 5. What is the relationship between intensity and duration of exercise?a) Directly relatedb) Inversely relatedc) No relationshipd) Cannot be determined
- 2. Which energy pathway becomes dominant during prolonged, moderate-intensity exercise?a) Aerobic pathwayb) Lactic acid systemc) Anaerobic pathwayd) None of the above
- During inspiration air rushes...
- During expiration the diaphragm and external intercostals...
- In comparison to expiration at rest the frequency of breath...
- During expiration the volume of thoracic cavity...
- In comparison to inspiration to rest more...
- Where does internal respiration occur?
- Where does external respiration occur?
- The oxyhaemoglobin dissociation curve during exercise
- During expiration the air rushes...
- During expiration the pressure of air inside the lungs...
- In comparison to expiration at rest the rib cage moves down and in...
- In comparison to inspiration to rest the volume of the thoracic cavity increases...