The table below walks you through a comparison of cooperative binding and noncooperative binding. By completing the table, you will learn why cooperative bindingis an important adaptation that makes gas exchange more efficient.Drag the labels to their appropriate locations on the table. Labels can be used more than once.► View Available Hint(s)20%30%50%70%80%100%Question1. What is the O₂2 saturationin the lungs?2. What is the O₂ saturationin tissues at rest?3. What percentage of O₂ isdelivered to tissues at rest?4. What is the O₂ saturationin exercising tissues?5. What percentage of O₂ isdelivered to exercising tissues?Cooperative bindingReset HelpNoncooperative binding Part C - Exploring the cooperative binding of oxygenOxygen shows cooperative binding to hemoglobin. Cooperative binding has the following effects on the binding and release of oxygen:Oxygen binding to hemoglobin: When one molecule of oxygen binds to one of hemoglobin's four subunits, the other subunits change shape slightly, increasingtheir affinity for oxygen.Oxygen release from hemoglobin: When four oxygen molecules are bound to hemoglobin's subunits and one subunit releases its oxygen, the other three subunitschange shape again. This causes them to release their oxygen more readily.These two graphs show how cooperative binding differs from a hypothetical situation where binding is not cooperative.• The x-axis shows the partial pressure of oxygen (PO₂). This is a measure of the amount of oxygen present in a tissue. The blue arrows on the x-axisshow the partial pressure of oxygen in various tissues of the body.• The y-axis shows the oxygen saturation of hemoglobin (O₂ saturation). This is the percentage of oxygen-binding sites on hemoglobin moleculesthat are actually bound to oxygen.O₂ saturation of hemoglobin (%)100806040-2000Cooperative binding10 20 30 40 50 60 70tissue duringexercisetissueat restPO₂ (mm Hg)80 90 100lungsO₂ saturation of hemoglobin (%)1008060402000Noncooperative binding10 20 30tissue duringexercise4050 60 70 80tissueat restPO2 (mm Hg)90 100lungsAdapted from Biological Science by Freeman Ⓒ Pearson Education, Inc.The table below walks you through a comparison of cooperative binding and noncooperative binding. By completing the table, you will learn why cooperative bindingis an important adaptation that makes gas exchange more efficient.Drag the labels to their appropriate locations on the table. Labels can be used more than once.

We can find the O2 saturation % of hemoglobin at various conditions in various organs of the body…

Answered: Question 1. What is the O₂ saturation…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Which of the following statements regarding control of respiration is TRUE? At high altitude, a decrease in PC02 of the blood stimulates an increase in ventilation. An increase in the HCO3- concentration in blood stimulates ventilation. A slight decrease in arterial PO2 is a stronger stimulus for increased ventilation than is a comparable decrease in arterial PCO2. The most important signal for regulating ventilation is the H+ concentration of arterial blood. Increased concentrations of lactic acid stimulate ventilation primarily by acting on peripheral chemoreceptors.
Question 2 If a person suffers a chest wound that allows air from the outside to leak into the pleural cavity, the lung may collapse. A. What holds the lung open normally? B. Why would the lung collapse in this situation?
Sometimes Don prefers to dive simply by holding his breath. Based on the following oxygen saturation curve, explain why hyperventilating before a dive where you hold your breath will have little effect on the oxygen content of your body, given that the Pog of the lung capillaries is 100 mmHg during normal respiration at sea level. OxyHemoglobin Dissociation Curve 100 40 20 30 10 20 0 40 s0 60 TO NO 90 100 11O 1300 10 Pa02 ORnCeus.com Sa02
You decide to cure your hiccups by breathing into a paper bag. Assumethat the bag is initially filled with 500 ml air (referenced to BTP) havingthe ambient air composition given in Table. Assume a breathing rateof 12 breaths/min, a CO2 production rate of 235 ml/min at BTP, and anO2 consumption rate of 284 ml/min at BTP. You can also assume that youbegin by inhaling all the air in the bag (i.e., tidal volume is 500 ml for thefirst breath), and that on each subsequent breath you increase your tidalvolume so as to completely empty the bag on inhalation. Compute the CO2concentration (as a percentage) in the bag after exhalation on the 10th breath.Although not particularly realistic, you can assume that the normal amountof CO2 is transferred from the lungs to the expelled air with every breath,even though the CO2 concentration in the bag is continually increasing
1. Is this statement correct or incorrect? Explain. During strenuous exercise, the oxygen-hemoglobin dissociation curve shifts to the right. This rightward shift reflects an increase in the affinity of hemoglobin for oxygen and favors loading of O2 onto hemoglobin in the lungs. 2. Is this statement correct or incorrect? Explain. Compared to hemoglobin, myoglobin has a lower binding affinity for O2 and a higher O2 binding capacity, two characteristics that allow myoglobin to efficiently provide skeletal muscle cells with a readily-accessible reservoir of O2.
How does the human body detect changes in blood pressure? Group of answer choices osmoreceptors ionreceptors baroreceptors chemoreceptors Which of the following could be the pH of a healthy individual? Group of answer choices 6.43 6.92 7.38 7.65
During exercise your pCO2 levels rise to 50 mm Hg while your pO2 levels drop to 80 mm Hg. Your peripheral chemoreceptors will be primarily sensitive to: A the increase in pCO2 B the decrease in pO2 C both the increase in pCO2 and decrease in pO2 D the increase in pCO2 and resulting increase in MAP E the decrease in pO2 and resulting increase in MAP
Question 5 Review 42.6. Which statement is true about the control of breathing in humans? All of these statements are correct O Most of the time, it is regulated by involuntary mechanisms. O Blood pH changes can influence breathing. O The neurons responsible for breath regulation are in medulla oblongata.
The primary mechanism by which the human body cools itself isperspiration.a. Explain how perspiring cools the skin.b. Referring to the data for Phoenix, Arizona, and Tampa,Florida (Table A ), in which city would it be easier tostay cool by perspiring? Explain your choice.
Make notes 1. Which is the major chemical that controls normal breathing? 2. What central nervous-system neurons produce increased depth but decrease frequency breathing in a person during voluntary action? 3. How do the blood pH and the CO2 change during heavy exercise? 4. Describe the neural factors involved in increasing ventilation during exercise. 5. Why is high oxygen therapy for chronic pulmonary conditions not recommended? 6. How does the chemoreceptor produce a release of "neurotransmitter" onto the afferent nerve that inputs to the respiratory center?
A patient receiving control-mode continuous mandatory ventilation has the following ABGs on an FiO2 of 0.4: pH = 7.51; PCO2 = 30 mm Hg; HCO3– = 25 mm Hg. Her current minute ventilation (VE) is 7.9 L/min. What new VE would you recommend? 9.0 L/min 6.7 L/min 7.5 L/min 5.9 L/min
What effect does hyperventilation have on blood pH and why? What simple measure can be used to correct the pH imbalance and how does it work? What effect would hyperventilation have on hemoglobin O2 saturation in a normal healthy individual? What effect would a PaO2 of 60 mmHg have on hemoglobin O2 saturation and why? (explain in terms of the O2-Hb dissociation curve)

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