Myoglobin would be an inappropriate carrier of oxygen to peripheral tissuesbecause:Myoglobin exists in the T, or deoxy state, in muscle tissue.Myoglobin would not release oxygen at the oxygen pressures found in muscletissue.Myoglobin has lower affinity and would lose the oxygen to hemoglobin duringtransport.Myoglobin is only soluble in plasma.Two of the above.

Hemoglobin and Myoglobin are two oxygen binding proteins found in mammals. Myoglobin is an oxygen…

Answered: Myoglobin would be an inappropriate…

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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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.
In sickle cell disease: O poor oxygen binding causes deformation of red blood cells a mutation in the B-chain of hemoglobin causes hemoglobin to polymerize into fibres that distort red blood cells. O the oxygen binding curve of hemoglobin must be shifted to the left hemoglobin is no longer able to bind oxygen myoglobin is not longer able to bind BPG.
Which of these factors in active tissue does not lead to greater release of O₂ from hemoglobin? elevated temperature O increased acidity O All of the other choices lead to increased release of oxygen O elevated carbon dioxide In anemia, the blood has low levels of hemoglobin and carries less oxygen (this is TRUE). Question: Does anemic blood have reduced PO2 compared with the PO2 of blood with normal hemoglobin levels? O Yes O No
Which of the following combinations would all result in an increase in stimulation to breathe? Group of answer choices decrease in PCO2 : increase in H+ : decrease in PO2 increase in PCO2 : increase in H+ : decrease in PO2 decrease in PCO2 : decrease in H+ : decrease in PO2 increase in PCO2 : decrease in H+ : increase in PO2 decrease in PCO2 : decrease in H+ : increase in PO2
When a person develops a fever, which of the following statements hemoglobin saturation are correct? - Modify the structure of hemoglobin and decrease its affernity for O2 - Can shift the O2-hemoglobin dissociation curve to the right - Decrease O2 unloading occurs in the tissue - Modify the structure of hemoglobin and increase its affernity for O2 - Can shift the O2 hemoglobin dissociation curve to the left - Enhance O2 unloading occurs in the tissue
Below are multiple oxygen binding affinity curves for hemoglobin. The affinity curve for normal hemoglobin in blood is represented by curve "D," at a pH of 7.2 and at a concentration of 5mM BPG and 26 mM CO2. O₂ saturation (%) 100 Answer 1: B Answer 2: [Select] Answer 3: B Answer 4: 80 A 60 1. How would changes to acidity, BPG concentration and CO₂ levels affect the binding affinity curve and p50? lower than Answer 5: E 40 1. BPG concentration is decreased to 3mM: The binding affinity curve would look like B. The p50 would be lower than normal (D). 2. pH is increased to 7.6: The binding affinity curve would look like B. The p50 would be [Select] normal (D). 20 3. CO₂ concentration is increased to 30 mM: The binding affinity curve would look like. [Select] The p50 would be Answer 6: 0 normal (D). II. The hemoglobin has been treated with a denaturing solution which disrupts quaternary structure only, and has a binding affinity resembling myoglobin. The binding affinity curve would look…
Ventilators are often used for individuals with COVID-19 to increase the rate of diffusion of gases across the alveoli. Ventilators could increase the rate of diffusion by impacting which factor of Fick’s law of membrane diffusion: a decreasing the diffusion coefficient (D) b decreasing surface area (A) c increasing the partial pressure difference (P1-P2) d increasing the diffusion distance e all of the above
When a patient has a severe allergic reaction, a common prescribed drug is epinephrine. Which of the follow best explains the effects of epinephrine on a patient experiencing a severe allergic reaction? A epinephrine binds to the beta-1 receptor. Activating the beta-1 receptor causes vasodilation and bronchoconstriction. Bronchoconstriction allows the patient to breath by relaxing the smooth muscle that is constricting the airway. B Epinephrine binds to the beta-2 receptor. Activating the beta-2 receptor causes vasodilation and bronchodilation. Bronchodilation allows the patient to breath easier by relaxing the smooth muscle that is constricting the airway. C Epinephrine binds to the alpha-1 receptor. Activating the alpha-1 receptor causes vasodilation and bronchodilation. Bronchodilation allows the patient to breath by relaxing the smooth muscle that is constricting the airway. D Epinephrine binds to the beta-1 receptor. Activating the beta-1 receptor causes vasodilation and…
Which of the following is TRUE about carbon dioxide binding to hemoglobin? Carbon dioxide carbamoylates the N-terminus, stabilizing the T-state Carbon dioxide binds to the central cavity in hemoglobin, stabilizing the T-state. Carbon dioxide, binds to the heme iron, stabilizing the T-state. None of the above are true. 1 UNANSWERED QUESTION 1/1 SKIP FOR NOW 14:03 / 14:11 MacBook Pro

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