Answer:
Jenna’s cells are producing more lactic acid than Raul’s cells.
Explanation:
During workouts like bleachers and sprints body, body experiences lack of oxygen and depends mainly on anaerobic respiration for energy production.
During anaerobic respiration, one molecule of glucose produces two molecules of ATP and two molecules of lactic acid. Hence, it leads to accumulation of lactic acid in the muscles.
On the other hand, during slow walking, body mainly depends for aerobic respiration, during which one molecule of glucose gets completely oxidized to form 36 ATP molecules.
As Jenna is performing anaerobic exercise and while Raul is performing aerobic exercise, more lactic acid would be produced by Jenna's cells that Raul's cells.