Question

an athlete runs a sprint. the graph shows the concentration of lactic acid and atp in the athletes blood. what would most likely happen in the athletes muscles as a result? lactic acid builds up due to anaerobic respiration. carbon dioxide production stops completely. the mitochondria begin using oxygen more efficiently. more atp is produced compared to aerobic respiration.

Explanation:

During a sprint, the body's oxygen demand exceeds supply. Anaerobic respiration occurs in muscles, producing lactic - acid as a by - product. Aerobic respiration produces more ATP than anaerobic respiration and carbon - dioxide production doesn't stop completely. There is no indication of mitochondria using oxygen more efficiently in this context.

Answer:

Lactic acid builds up due to anaerobic respiration.