What is Life? A Guide to Biology with Physiology
What is Life? A Guide to Biology with Physiology
3rd Edition
ISBN: 9781464157745
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 21, Problem 18MC
Summary Introduction

Introduction:

Humans get accustomed to the oxygen levels at higher altitudes due to the production of more diphosphoglyceric acid.

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All of the following are accurate statements about hemoglobin except a. hemoglobin carries oxygen on the Fe ion. b. hemoglobin carries carbon dioxide on the globin. c. hemoglobin carries only a small portion of the total carbon dioxide in the blood (less than 25%). d. hemoglobin releases oxygen at the level of the cell, making hemoglobin more saturated.
Which of the following factors would increase the amount of oxygen discharged by hemoglobin to peripheral tissues? a. decreased amounts of DPG b. increased tissue PO2  c. decreased pH d. decreased temperature e. all of the above
Which of the following causes an increase in hemoglobin’s 02 affinity? A. An increase in the partial pressure of oxygen. B. A decrease in ph C. An increase in the concentration of 2,3 -BPG D. An increase in the partial pressure of carbon dioxide
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