You are obviously still breathing during an anaerobic activity like sprinting. If the skeletal muscle cells...

You are obviously still breathing during an anaerobic activity like sprinting. If the skeletal muscle cells in your legs are performing lactic acid fermentation to produce the necessary ATP for their proper functioning, what is happening to the O2 gas you are breathing?

Expert Solution

ANSWER -

lactic acid fermentation is complete anaerobic process in which there is no need for the oxygen

the chemical equation of the following is like this

C6H12O6 --------------> 2C3H6O3 + 2ATP

here, glucose is converted into two molecules of lactic acid and also production of ATP

the ATP, which is released is used up by the body instantly as per the energy requirement.

now the question arises, what happens to the oxygen we breathe, and when oxygen is not being used then how body is able to release out so much of carbon dioxide.

here, the answer lies in the fact that the lactic acid which is produced in the body need to be broken down into simpler forms or else it will cause severe long lasting cramps in the muscles. and this breakdown of lactic acid is carried out by oxygen

the lactic acid is broken down by the extra oxygen which we are taking in with heavy breathing and this results into production of carbon dioxide and water., as the lactate is first converted back into pyruvate and then the further breakdown takes place in the presence of oxygen in mitochondria, as the lactic acids break down it results into the diappearance of the cramps in the body.

lactic acid is taken into liver by blood and there it is oxidized into carbon dioxide and water with the help of oxygen or it will be converted into glucose,by converting lactate into pyruvate by the action of lactate dehydrogenase and the muscles can be restored with energy.

the chemical equation of the breakdown is mentioned below -

lactate -----.> enzyme lactate dehydrogenase and oxygen ------> pyruvate + carbon dioxide and water

in mitochodria

gladiator answered 2 years ago

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