HUMAN BIOLOGY
16th Edition
ISBN: 9781260233032
Author: Mader
Publisher: RENT MCG
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Textbook Question
Chapter 1.1, Problem 2BTS
In addition to hemoglobin levels, do you think that people at high elevations may exhibit other adaptations?
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In carbon monoxide (CO) poisoning, CO binds to the heme of hemoglobin much tighter than oxygen (O2). What effect will this have on the ability of the tissues to get oxygen?
Group of answer choices
There will be no effect.
CO will deliver oxygen to the tissues.
Hemoglobin will bind more O2 and deliver more oxygen to the tissues.
More hemoglobin will be produced to deliver oxygen to the tissues.
Hemoglobin will bind less O2 and deliver less oxygen to the tissues.
73) The Haldane Effect says that it is easier for CO2 to bind to hemoglobin once oxygen has dissociated from the heme group.
Group of answer choices
True
False
74) In the homeostatic regulation of blood oxygen levels, the central processor is the ________.
Group of answer choices
Blood Oxygen Levels
CO2 Receptors
Kidney
Red Bone Marrow
Lungs
75) Boyle’s Law states that there is a directly proportional relationship between the volume of a container and the pressure within that container.
Group of answer choices
False
True
76) All Red Blood Cells are replenished at the same time.
Group of answer choices
True
False
Chapter 1 Solutions
HUMAN BIOLOGY
Ch. 1.1 - Explain the basic characteristics that are common...Ch. 1.1 - Describe the levels of organization of life.Ch. 1.1 - Explain why the study of evolution is important in...Ch. 1.1 - What other environments do you think could be...Ch. 1.1 - In addition to hemoglobin levels, do you think...Ch. 1.1 - Prob. 1CYPCh. 1.1 - Prob. 2CYPCh. 1.1 - Explain the relationship between adaptations and...Ch. 1.2 - Prob. 1LOCh. 1.2 - Understand that humans have a cultural heritage.
Ch. 1.2 - Prob. 3LOCh. 1.2 - Define the term biosphere.Ch. 1.2 - Define culture.Ch. 1.2 - Explain why humans belong to the domain Eukarya...Ch. 1.3 - Describe the general process of the scientific...Ch. 1.3 - Prob. 2LOCh. 1.3 - Prob. 3LOCh. 1.3 - Prob. 4LOCh. 1.3 - Prob. 5LOCh. 1.3 - Describe each step of the scientific method.Ch. 1.3 - Prob. 2CYPCh. 1.3 - Prob. 3CYPCh. 1.3 - Prob. 4CYPCh. 1.3 - Prob. 1BTSCh. 1.3 - Prob. 2BTSCh. 1.4 - Prob. 1LOCh. 1.4 - 2. Summarize some of the major challenges facing...Ch. 1.4 - Prob. 1CYPCh. 1.4 - Prob. 2CYPCh. 1.4 - Summarize how emerging diseases and climate change...Ch. 1 - Prob. 1ACh. 1 - Key: Lite is organized, Living organisms reproduce...Ch. 1 - Key: Life is organized. Living organisms reproduce...Ch. 1 - Key:
Life is organized.
Living organisms reproduce...Ch. 1 - Prob. 5ACh. 1 - Prob. 6ACh. 1 - Prob. 7ACh. 1 - Prob. 8ACh. 1 - Prob. 9ACh. 1 - Prob. 10ACh. 1 - Prob. 11ACh. 1 - Prob. 12ACh. 1 - Prob. 13ACh. 1 - Prob. 1TCCh. 1 - 2. You are a scientist working at a pharmaceutical...Ch. 1 - Scientists have been exploring the possibility of...
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- Discuss what is the advantage of producing different hemoglobins at different stages ofdevelopment?arrow_forwardWhat is the biological advantage to the sigmoidal binding curve of hemoglobin for oxygen? A. It ensures that hemoglobin has a high affinity for oxygen. B. It allows hemoglobin to bind oxygen irreversibly. C. It ensures that hemoglobin can bind oxygen only weakly. D. It allows hemoglobin to shift between low and high affinities for oxygen.arrow_forwardDraw an oxygen-hemoglobin dissociation curve. Put in the points that represent systemic venous and systemic arterial blood (ignore the rightward shift in systemic venous blood). What is the adaptive importance of the plateau? Of the steep portion? Hemoglobin saturation (%) 100 80 80 8 20 O 20 Systemic venous 40 60 80 Po₂ (mmHg) Fig. 13.26 Amount of O₂ unloaded in tissue capillaries Systemic arterial Рог 100 120 140arrow_forward
- Like typical fish, the crocodile icefish still need and use oxygen for metabolism. Explain why only fish that evolved to live in cold waters, like the crocodile icefish, could lose hemoglobin? ( unlike terrestrial organisms, marine organisms like fish use oxygen dissolved in water.)arrow_forwardWhat would be the consequence of a deficiency of hemoglobin in our bodies?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
- Which 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_forwardIn the text, we learned that BPG is abundantly present in erythrocytes to greatly reduce the affinity of hemoglobin for oxygen. When 2,3-BPG binds to deoxyhemoglobin, it acts to stabilize the low oxygen affinity state (T state) of the oxygen carrier. What would happen to hemoglobin if the BPG were removed? Would our body still be able to efficiently deliver oxygen to the tissues?arrow_forwardWhich statement describes hemoglobin's cooperativity? A. When tetrameric hemoglobin binds one molecule of O2, its shape changes to make it bind more readily to a second molecule of O2. B. When tetrameric hemoglobin binds one molecule of O2 its shape changes, which prevents binding of any more O2 molecules. C. When oxygen is present in the blood, the shape of hemoglobin changes to allow oxygen to bind to it. D. When the oxygen concentration in blood decreases, then hemoglobin changes its shape to retain oxygen more readily. E. None of the above answer choices correctly describes cooperativity.arrow_forward
- Describe how the cooperative binding of hemoglobin allows for optimal oxygen delivery.arrow_forwardWhich 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.arrow_forwardThe following graph shows partial saturation (Y) of myoglobin (Mb), adult hemoglobin (HbA) and fetal hemoglobin (HbF) as a function of partial oxygen pressure (in mmHg). Use it to answer the question: Fetal hemoglobin ( biological function: HbF) demonstrates lower p50 than adult hemoglobin (HbA). This adaptation has the following A. Allow fetal hemoglobin form pentamer subunits. B. HbF has lower affinity for for O2 compared to adult Hb C. Allow fetal hemoglobin to effectively intercept oxygen from mother's hemoglobin. D. Allow fetal hemoglobin to replace myoglobin in musclesarrow_forward
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