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

a)

Raises the  of blood to 75 mm of Hg

b)

Is enough to keep oxyhaemoglobin

c)

Helps in releasing more  to the epithelial tissues

d)

Acts as a reserve during muscular exercises


Question ID - 2703 | Toppr Answer

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

a)

Raises the  of blood to 75 mm of Hg

b)

Is enough to keep oxyhaemoglobin

c)

Helps in releasing more  to the epithelial tissues

d)

Acts as a reserve during muscular exercises

1 Answer - 5876 Votes

3537

Answer Key : (D) -

(d)

Our tissue are able to utilized only 25% of  carried by arterial blood. The venous blood is stil 75% saturated with . This  acts as a reserve during muscular exucise.



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