Define (HT only) oxygen debt as the extra oxygen needed after exercise to react with accumulated lactic acid and remove it from cells.

To define (HT only) oxygen debt as the extra oxygen needed after exercise to react with accumulated lactic acid and remove it from cells, start with Response to exercise and keep the answer inside Respiration. Approved keywords include exercise, lactic acid, and oxygen debt. oxygen debt is useful here because the extra oxygen needed after exercise to react with accumulated lactic acid and remove it from cells. Avoid students often confuse oxygen debt with the amount of oxygen consumed during exercise, rather than understanding it as the extra oxygen required post-exercise to clear lactic acid; instead clarify that oxygen debt specifically refers to the additional oxygen needed after exercise to metabolize lactic acid that has built up in the muscles. Use clearly define oxygen debt in your own words, focusing on its role in post-exercise recovery. Link your answer to Response to exercise in Respiration, and keep the biology specific to exercise. This helps reinforce your understanding of the concept and prepares you to explain it effectively in the exam. This keeps revision aligned with the approved learning objective on define (HT only) oxygen debt as the extra oxygen needed after exercise to react with accumulated lactic acid and remove it from cells.