A) raises the \[{{p}_{C{{O}_{2}}}}\]of blood to 75 mm of Hg
B) is enough to keep pxyhaemoglobin
C) helps in relasing more \[{{O}_{2}}\] to the epithelial tissues
D) acts as a reserve during muscular exercise
Correct Answer: D
Solution :
| [D] Our tissue are able to utilize only 25% of \[{{O}_{2}}\] carried by arterial blood. The venous blood is still 75% saturated with \[{{O}_{2}}\]. This \[{{O}_{2}}\] acts as a reserve during muscular exercise. |
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