The muscle cell fluid of an athlete was tested immediately after a 100m race and...
The muscle cell fluid of an athlete was tested immediately after a 100m race and was found to contain a high concentration of lactic acid .Explain what could have caused this. The
- A) athlete must have eaten food containing a lactic acid
- B) athlete must have injected lactic acid into his blood just before the race
- C) athlete must have carried out anaerobic respiration during the race
- D) athlete must have inhaled lactic acid from the environment during the race
Correct Answer: C) athlete must have carried out anaerobic respiration during the race
Explanation
The question is asking why an athlete's muscle cell fluid contained a high concentration of lactic acid after a 100m race. Lactic acid is produced during anaerobic respiration when there is not enough oxygen to produce energy. This means that the correct option is C, which states that the athlete must have carried out anaerobic respiration during the race. During exercise, the body needs more energy to fuel the muscles. If there is not enough oxygen being supplied to the muscles to produce this energy aerobically, anaerobic respiration takes place. This process produces lactic acid as a waste product, which builds up in the muscles and can cause fatigue and pain. Therefore, the athlete's muscle cell fluid contained a high concentration of lactic acid because they carried out anaerobic respiration during the race, which is a common occurrence during intense exercise. Options A, B, and D are incorrect as they do not relate to the production of lactic acid during exercise. It is important for athletes to train and prepare their bodies for intense exercise to prevent the build-up of lactic acid and reduce the risk of fatigue and injury. This can be achieved through regular exercise and a healthy diet.