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Body Fluids and Circulation — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYBody Fluids and Circulation1 Mark
MCQ
If a person stays on Mount Everest for some days:
  • A
    His body will step up production of $\text{RBC}$
  • ✓
    His body will step down production of $\text{RBC}$
  • C
    Number of $\text{RBC}$ will not change
  • D
    His $\text{RBC}$ will turn into very large cells
✓

Answer

Correct option: B.
His body will step down production of $\text{RBC}$
Even at moderate elevations, many people experience headaches and shortness of breath due to lower oxygen concentrations at that level. However, if they stay at that elevation, the body will compensate by producing more red blood cells and all functions will return to normal.

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