A large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues. This oxygen ___________ Options: A . &nbsphelps in releasing more oxygen to tissues B . &nbspraises the pCO₂ of blood to 75mm of Hg C . &nbspacts as a reserve during muscular exercise D . &nbspis enough to keep oxyhemoglobin saturation at 96%

A large proportion of oxygen is left unused in the human blood even after its up

Question

A large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues. This oxygen ___________

Options:

A . helps in releasing more oxygen to tissues

B . raises the pCO₂ of blood to 75mm of Hg

C . acts as a reserve during muscular exercise

D . is enough to keep oxyhemoglobin saturation at 96%

Answer: Option C
Answer: (c).acts as a reserve during muscular exercise

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