Q. During heavy exercise, we get cramps in the legs due to the accumulation of ____:
Answer:
Lactic acid
Notes: Lactic acid is a compound produced when glucose is broken down and oxidized. During intense exercise when oxygen levels are lower, more lactic acid is produced. In animals, L-lactate is constantly produced from pyruvate via the enzyme lactate dehydrogenase (LDH) in a process of fermentation during normal metabolism and exercise.