CRITICAL THINKING ASSESSMENT Hydrogen ion (H\') levels increase within the body

Question

CRITICAL THINKING ASSESSMENT Hydrogen ion (H') levels increase within the body from increased production of lactic acid (during anaerobic cellular respiration) and from increased production of carbon dioxide (CO2 + H2O H-HCO). The increased amounts of H bind with the amino acids that compose the protein of hemoglobin, slightly altering hemoglobin's shape. This change in shape interferes with the ability of iron within the hemoglobin molecule to bind the oxygen (decreased affinity or attraction). (This is referred to as the Bohr effect.) If the tissues of the body are metabolically active,(more or le less) H' are produced and the pH is (decreased or increased). As a result of the Bohr effect, when hemoglobin reaches the systemic (greater or less) affinity: (more (greater or less), and capillaries, the hemoglobin will bind the oxygen with or less) oxygen is released to the cells; the saturation of hemoglobin will be hemoglobin returns to the lungs with (more or less) oxygen than would occur at a normal pH.

Explanation / Answer

Answer

If the tissue of the body are metabolically active, more  H+ are produced and the pH is decreased  . As a result of the Bohr effect, when hemoglobin reaches the systemic capillaries, the hemoglobin bind with the oxygen with less affinity :   more   oxygen is released to the cells; the saturation of the hemoglobin will be less , and hemoglobin returns to the lungs with less   oxygen than would occur at a normal pH

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