Lactic Acid

Science: KS3, topic 1.6.20

Lactic Acid

Lactic Acid is a waste by-product of anaerobic respiration. Lactic acid enables energy to be produced in cells without the presence of oxygen.

Formula

Formula

  • Lactic acid is an organic acid.
  • Lactic acid has the formula CH₃CHCOOH.
  • Lactic acid contains carbon, oxygen, and hydrogen.
  • Lactic acid can be mixed with water to form a colorless solution.
Lactic acid and exercise

Lactic acid and exercise

  • Lactic acid is the waste by-product of anaerobic respiration.
  • Lactic acid is created when you exercise.
  • Exercise may cause deeper breathing.
  • Deeper breathing is your body trying to inhale more oxygen.
Excess lactic acid

Excess lactic acid

  • Some health conditions prevent people from getting enough oxygen.
  • Lack of oxygen may cause continuous high levels of lactic acid.
  • Continuous high levels of lactic acid may lead to:
  • Kidney failure
  • Liver failure
  • Cirrhosis
  • The liver converts lactic acid back into glucose.

Test yourself on Lactic Acid

  • What is lactic acid a waste by-product of?

  • A health condition means a person's cells never get enough oxygen. What is this likely to do to their lactic acid levels?

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