when lactic acid builds up in the blood the person is said to be in oxygen debt this debt must eventually be paid suggest how the debt is paid???

Please find below the solution to the asked query

To pay oxygen dept, the body must take more oxygen by increasing respiratory rate and supply it to the tissues through circulatory system. Due to this the lactic acid is oxidised completely and removed from the tissues.
 

Hope this information will clear your doubts about the lactic acid formation in tissues.
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