Across
- 1. Part of the cell where aerobic respiration takes place
- 3. Energy system that uses creatine phosphate and works without oxygen
- 6. Type of exercise intensity mainly supported by the ATP-PC system
- 8. By-product that causes fatigue in the lactate system
- 11. Time needed for energy systems to restore ATP after exercise
- 12. Type of respiration used by the ATP-PC and lactate systems
- 13. Fuel broken down into lactic acid in the lactate system
Down
- 2. The molecule that provides immediate energy for muscle contraction
- 4. The breakdown of ATP releases energy for this process in muscles
- 5. Storage form of carbohydrate in muscles and liver
- 7. Process where glucose is broken down without oxygen
- 9. Energy system that can use fats, carbohydrates, and proteins
- 10. Energy system dominant during long-duration exercise