Pyruvic acid
Lactic acid
Oxalacetic acid
Uric acid
Answer is Wrong!
Answer is Right!
The correct answer is: B. Lactic acid
Lactic acid is a byproduct of anaerobic respiration, which occurs when the body does not have enough oxygen to meet its energy needs.
When lactic acid builds up in the muscles, it can cause muscle fatigue.Pyruvic acid is a molecule that is produced during glycolysis, the first step in cellular respiration. It is then converted into either lactic acid or acetyl-CoA, which is used in the Krebs cycle.
Oxalacetic acid is a
molecule that is produced during the Krebs cycle. It is then converted into citrate, which is used in the next step of the cycle.Uric acid is a waste product that is produced when the body breaks down purines. It is excreted in the urine.
In summary, lactic acid is the molecule that causes muscle fatigue. It is produced when the body does not have enough oxygen to meet its energy needs.