A large proportion of oxygen remains unused i | vedclass

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(A) Under normal physiological conditions,only about $25\%$ of the oxygen carried by arterial blood is delivered to the tissues. This means that a lar

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acts as a reserve during muscular exercise

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(A) Under normal physiological conditions,only about $25\%$ of the oxygen carried by arterial blood is delivered to the tissues. This means that a large proportion of oxygen remains bound to hemoglobin in the venous blood. This residual oxygen acts as a significant reserve,which can be utilized by the body during periods of increased metabolic demand,such as intense muscular exercise.

$A$ large proportion of oxygen remains unused in the human blood even after its uptake by the body tissues. This $O_2$

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