Question

Respiration in muscles during heavy exercise.KAM RA​

Answer 1

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‎ ‎RESPIRATION IN MUSCLES DURING

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎HEAVY ‎EXERCISE

During heavy exercise, anaerobic respiration takes place in the muscles. When we exercise heavily, a shortage of oxygen occurs which causes muscle fatigue. To tolerate that, the energy has to be transferred from the glucose to the muscles quickly, during the exercise. Our body cannot get the supply of oxygen to the muscles quickly enough for aerobic respiration to occur. So, anaerobic respiration occurs during heavy exercise.

• Anaerobic respiration doesn't requires oxygen to create energy.
• Only a small amount of energy will be released in the muscles cells when anaerobic respiration occurs.
• In anaerobic respiration, the break down of the glucose (created during the exercise) occurs to produce Adenosine triphosphate (ATP).
• In the production of ATP, lactic acid is released as a by-product.
• Later, the lactic acid will be oxidised into water and carbon dioxide.

‎ ‎ ‎ ‎ ‎ ‎‎${\boxed{\sf{Glucose\longrightarrow Lactic\:acid+Energy}}}$

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Answer 2

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Anaerobic respiration happens in muscles during heavy exercise. Glucose is not completely broken down, so less energy is released than during aerobic respiration. There is a build-up of lactic acid in the muscles during vigorous exercise.

$\small\underline\mathcal\purple{Gulcose \: → \: Lactic \: Acid + \: Energy}$