The oxygen equilibrium curve reaches a plateau when
A) the blood has reached its carrying capacity.
B) respiratory pigment molecules are depleted of oxygen.
C) iron levels are high.
D) the cycle of inhalation is complete.
Correct Answer:
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Q29: Many vertebrates' response to hypoxia is contraction
Q30: In vertebrates,most of the bicarbonate in the
Q31: Hemoglobins are
A)red.
B)blue.
C)clear.
D)green.
Q32: In the blood,the carbonic anhydrase reaction yields
A)CO₂.
B)H₂O.
C)HCO₃⁻.
D)ATP.
Q33: Some of the air that enters the
Q35: Many vertebrates cope with hypoxia by
A)enlarging the
Q36: Bird lungs are efficient because of
A)their large
Q37: Hemoglobins get their color from
A)heme.
B)iron.
C)protein.
D)copper.
Q38: In most mammals,the effect of increased 2,3-DPG
Q39: The ideal ventilation perfusion ratio for the
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