Multiple choice

All of the following occur, when the blood flows through systemic capillaries, except

  1. increase in hematocrit

  2. Hb curve shifts to the left

  3. increased protein content

  4. decrease in Ph
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

As blood flows through systemic capillaries, CO2 is released from tissues, which causes the oxyhemoglobin dissociation curve to shift RIGHT (Bohr effect) - facilitating oxygen unloading. This is the exception among the listed changes. The other changes DO occur: water leaves capillaries increasing hematocrit, plasma protein concentration increases slightly, and pH decreases due to acidic metabolites.

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