EVERYDAY SCIENCE

Detailed explanation-1: -Muscle cells also carry out lactic acid fermentation, though only when they have too little oxygen for aerobic respiration to continue-for instance, when you’ve been exercising very hard.

Detailed explanation-2: -Lactic acid is mainly produced in muscle cells and red blood cells. It forms when the body breaks down carbohydrates to use for energy when oxygen levels are low. Times when your body’s oxygen level might drop include: During intense exercise.

Detailed explanation-3: -Anything that makes your body use more oxygen than usual can cause your cells to produce lactic acid. A workout, doing yardwork or lugging heavy boxes while you’re helping a friend move can all cause a short-term increase in lactic acid in your body.