Muscle cramps during vigorous exercise occur due to accumulation of __________.
Lactic acid
During vigorous exercise the muscles need energy faster than the oxygen supply can meet. The muscle cells then respire anaerobically, breaking glucose into pyruvate and then into lactic acid while releasing a small amount of energy.
The lactic acid builds up in the muscle cells faster than it can be removed, and this accumulation causes muscle cramps and fatigue.
Oxygen is in short supply and is used up, not accumulated. Carbon dioxide is produced in aerobic respiration and is carried away by the blood to the lungs. Ethanol is a product of anaerobic respiration in yeast, not in human muscle cells.
Hence, Lactic acid.
Similar Questions
How do the respiratory and circulatory systems work together during exercise?
How is oxygen transported from the lungs to body tissues in humans?
Which equation correctly represents aerobic respiration?
What is a key difference between aerobic and anaerobic respiration in animals?
A patient has a lung disorder that reduces oxygen uptake in the alveoli. What is the most likely effect on blood transport in the lungs?
How does nutrition occur in Amoeba?
Which process occurs when blood passes through the lungs during circulation?
Why is it essential for an organism’s body to carry out life processes during periods of rest?
A plant is kept in a sealed glass container for several days. Which life process is most likely to be affected?
A doctor is assessing two patients: one with high systolic blood pressure and another with high diastolic blood pressure. If these conditions remain untreated, what is the most likely outcome?
Important Questions from Life Processes
Which one of the following is the process involved in photosynthesis?
Which element is needed by the thyroid gland to produce thyroxine hormone?
Identify the correct match of plant hormones with their functions.
What is required for the synthesis of thyroxin hormones?
Which of the following receptors help in the detection of taste?
