Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Question
Chapter 36, Problem 3CCQ
Summary Introduction
To analyze:
The ways in which the two given principles of biology are related to hemoglobin.
Introduction:
Hemoglobin is a protein that belongs to the globin family. This protein is present in the red blood cells. It contains an “iron-containing chemical” called heme. There are four polypeptide units present in a hemoglobin molecule.
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Students have asked these similar questions
Why is the binding of oxygen to hemoglobin cooperative while the binding of oxygen
to myoglobin is not?
A) Myoglobin has more x-helix than hemoglobin
B) Hemoglobin has more iron (Fe) atoms
C) Hemoglobin has more than one subunit
D) Myoglobin is affected by changes in pH
Which of the following situations occurs if a person's blood becomes more alkaline?
A.
Hemoglobin molecules retain less oxygen per heme group under alkaline conditions than they do at neutral pH or under acidic conditions.
B.
Hemoglobin molecules give up oxygen more readily under alkaline conditions than they do under neutral pH or under acidic conditions.
C.
Hemoglobin molecules change shape and begin to lose oxygen molecules.
D.
Hemoglobin molecules retain oxygen more readily under alkaline conditions than they do at neutral pH or under acidic conditions.
E.
There is no change in hemoglobin's oxygen-binding affinity under alkaline conditions when compared to blood at neutral pH or under acidic conditions.
Regarding the quaternary structure of human hemoglobin, it is in
C2 symmetry
D2 symmetry
C4 symmetry
D4 symmetry
Chapter 36 Solutions
Principles of Biology
Ch. 36.1 - Prob. 1CCCh. 36.1 - Prob. 1TYKCh. 36.1 - Prob. 2TYKCh. 36.2 - Prob. 1BCCh. 36.2 - Prob. 1TYKCh. 36.2 - Which is false? Platelets are nucleated cells that...Ch. 36.3 - Prob. 1CCCh. 36.3 - Prob. 2CCCh. 36.3 - Prob. 3CCCh. 36.3 - Prob. 1TYK
Ch. 36.3 - Prob. 2TYKCh. 36.4 - Prob. 1CCCh. 36.4 - Prob. 1TYKCh. 36.4 - Prob. 2CCCh. 36.4 - Prob. 2TYKCh. 36.5 - Prob. 1TYKCh. 36.5 - Prob. 2TYKCh. 36.6 - Prob. 1TYKCh. 36.7 - Prob. 1CCCh. 36.7 - Prob. 1BCCh. 36.7 - Prob. 2CCCh. 36.7 - Prob. 3CCCh. 36.7 - Prob. 1TYKCh. 36.7 - Which of the following statements is false? The...Ch. 36.8 - Prob. 1TYKCh. 36.8 - Prob. 2TYKCh. 36.9 - Prob. 1CCCh. 36.9 - Prob. 1TYKCh. 36.9 - Prob. 2TYKCh. 36.10 - Prob. 1BCCh. 36.10 - Prob. 1TYKCh. 36.11 - Prob. 1TYKCh. 36.11 - Prob. 2TYKCh. 36.11 - Prob. 3TYKCh. 36 - Prob. 1TYCh. 36 - Prob. 2TYCh. 36 - Prob. 3TYCh. 36 - Prob. 4TYCh. 36 - Considering blood flow through a closed...Ch. 36 - Prob. 6TYCh. 36 - Prob. 7TYCh. 36 - Prob. 8TYCh. 36 - Prob. 9TYCh. 36 - Prob. 10TYCh. 36 - Discuss the difference between closed and open...Ch. 36 - Prob. 2CCQCh. 36 - Prob. 3CCQCh. 36 - Prob. 1CBQCh. 36 - List the components of the mammalian respiratory...
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- In your own words, explain why hemoglobin is important in hematology.arrow_forwardWhat are the conditions under which hemoglobin precipitates out of solution, and how are normal and sickle-cell hemoglobin different in that regard? What do you predict will happen to red blood cells if hemoglobin precipitates out of solution and crystallizes?arrow_forwardYou are studying with a friend who is describing the Bohr effect. She tells you that in the lungs, hemoglobin binds oxygen and releases hydrogen ion; as a result, the pH increases. She goes on to say that in actively metabolizing muscle tissue, hemoglobin releases oxygen and binds hydrogen ion and, as a result, the pH decreases. Do you agree with her reasoning? Why or why not?arrow_forward
- In addition to O2 binding, changes in other chemical conditions can result in changes in hemoglobin structure and function. Increases in blood H+ result in oxygen binding curves for hemoglobin that are shifted to the right. The effect of H+ can be understood in terms of the equilibrium:H-Hb+ + O2 → Hb-O2 + H+How does the difference in pH in the lungs and tissues help hemoglobin do its job of delivering oxygen? Use the equilibrium equation in your argument.arrow_forwardWhich of the following statements is true about hemoglobin? a.hemoglobin b. Each hemoglobin molecule is made up of one alpha and one beta chain polypeptide. C. All that is needed to bind oxygen is a molecule of heme. D. Each hemoglobin molecule can carry four oxygen molecules.arrow_forwardCan all abnormal hemoglobin be diagnosed by electrophoresis? Explain your answer in detail.arrow_forward
- The following statement describes which level of structure of the hemoglobin molecule? "Each chain is stabilized by electrostatic interactions between -COO- and -NH3+ of amino acid side chains." Primary Second Tert Quatarrow_forwardWhich of the following statements is INCORRECT about how the components of hemoglobin are recycled? a. Iron ions are either stored in a phagocytic cell or circulate in the blood, bound to transferrin (a plasma protein). b. Each heme is stripped of its iron and converted to bilirubin, then excreted in bile. c. The alpha and beta chains are released into the bloodstream for use by other cells. d. Hemoglobin can be recycled only if phagocytized by macrophages.arrow_forwardAccording to Figure 17.10b, at a pH of 7.4, how much hemoglobin is unloaded in the tissue? 12% 24% 56% 72% 95%arrow_forward
- The individual hemoglobin subunits and myoglobin share similar ________ structure but have rather different ________ structure. Group of answer choices secondary and tertiary; primary primary and secondary; tertiary secondary; tertiary primary; tertiary primary; secondaryarrow_forwardWhich of the following describe(s) a characteristic or function of hemoglobin?a. Hemoglobin consists of four chains of amino acids.b. A hemoglobin molecule contains four iron ions to carry oxygen.c. In addition to transporting oxygen, hemoglobin molecules carry carbon dioxide and hydrogen ions.d. Hemoglobin is a protein found in all formed elements.e. There are four hemoglobin molecules in each red blood cell.arrow_forwardDescribe the structure of hemoglobin and How does the structure of hemoglobin allow it to combine with oxygen?arrow_forward
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