Low pH alters hemoglobin structure so that oxygen binds less strongly to hemoglobin at low PO2. This increases the effectiveness of
A) external respiration.
B) internal respiration.
C) carbon dioxide transport.
D) hemoglobin synthesis.
E) acid-base balance.

Question

Quizplus · Accepted Answer

Low pH, or acidic conditions, promote the release of oxygen from hemoglobin, allowing more oxygen to be delivered to the tissues during internal respiration. External respiration refers to the exchange of gases between the external environment and the body, which is not directly affected by hemoglobin structure. Carbon dioxide transport is also not directly affected by low pH, although it is indirectly related to the role of hemoglobin in carrying both oxygen and carbon dioxide. Hemoglobin synthesis is a separate process from the oxygen binding properties of hemoglobin, and is not affected by changes in pH. Acid-base balance refers to the regulation of pH in the body, and while low pH may impact this balance, it is not directly related to the role of hemoglobin in oxygen transport.

Low PH Alters Hemoglobin Structure So That Oxygen Binds Less