Which of the following are TRUE, when describing the Transport of CO2 in the body? Select ALL that are true. The diffusion of CO2, from metabolically active tissue, into the plasma and the Red Blood Cell, is enhanced by the formation of Carbamino Bonds with plasma proteins and Haemoglobin. CO2 diffuses from metabolically active tissue, into the plasma, where it is rapidly converted to bicarbonate (HCO3-) by he enzyme Carbonic Anhydrase. Bicarbonate (HCO3-), formed in the Red Blood Cell, is transported into the Plasma by the Chloride-Bicarbonate Shuttle. Bicarbonate (HCO3-) diffuses from metabolically active tissue into the plasma, and from the plasma into the Red Blood Cell. CO2 diffuses from metabolically active tissue, into the plasma, and into the Red Blood Cell, where it is rapidly converted to bicarbonate (HCO3-) by he enzyme carbonic Anhydrase. O At the lung, Bicarbonate (HCO3-) in the Plasma is transformed to CO2 by the enzyme Carbonic Anhydrase, reducing the amount of Bicarbonate needing transport into the Red Blood cell by the Chloride-Bicarbonate Shuttle.

Which of the following are TRUE, when describing the Transport of CO2 in the body? Select ALL that are true. The diffusion of CO2, from metabolically active tissue, into the plasma and the Red Blood Cell, is enhanced by the formation of Carbamino Bonds with plasma proteins and Haemoglobin. CO2 diffuses from metabolically active tissue, into the plasma, where it is rapidly converted to bicarbonate (HCO3-) by he enzyme Carbonic Anhydrase. Bicarbonate (HCO3-), formed in the Red Blood Cell, is transported into the Plasma by the Chloride-Bicarbonate Shuttle. Bicarbonate (HCO3-) diffuses from metabolically active tissue into the plasma, and from the plasma into the Red Blood Cell. CO2 diffuses from metabolically active tissue, into the plasma, and into the Red Blood Cell, where it is rapidly converted to bicarbonate (HCO3-) by he enzyme carbonic Anhydrase. O At the lung, Bicarbonate (HCO3-) in the Plasma is transformed to CO2 by the enzyme Carbonic Anhydrase, reducing the amount of Bicarbonate needing transport into the Red Blood cell by the Chloride-Bicarbonate Shuttle.

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter13: The Respiratory System

Section: Chapter Questions

Problem 15RE

See similar textbooks

Similar questions

Individuals with cystic fibrosis produce thick mucus in the lungs, resulting in a higher-than-normal level of CO2 in the blood. What is the problem that results from higher-than-normal levels of COz in the blood? Please relate this to buffers in the blood and construct a clear problem statement.
When an actively metabolizing tissue produces CO2, the H+ concentration of blood increases. Explain how this happens using a chemical equation.
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.
Which of the following statements is correct of BOTH haemoglobin and myoglobin? Acidic conditions increase the affinity for oxygen. The iron atom of the heme prosthetic group is bound to nitrogen atoms at five of six coordination sites. Four oxygen molecules bind to each subunit. Quaternary structure is found in both haemoglobin and myoglobin. Both haemoglobin and myoglobin show the same oxygen binding affinity at different
Would you expect the concentration of HCO3 to be higher in blood plasma taken from a systemic artery or a systemic vein?
Which of the following concerning hemoglobin is true? a) BPG decreases at high altitudes and causes more O2 offloading in tissues b) As pH increases, [CO2] increases in tissues, causing more O2 release in tissue c) The R state is stabilized by CO2 binding, whereas the T state is stabilized by O2 binding d) About 38% of oxygen dissociates from hemoglobin in tissues e) Hemoglobin has a higher affinity for oxygen than carbon monoxide My guess is D.
Which of the following concerning hemoglobin is true? a) BPG decreases at high altitudes and causes more O2 offloading in tissues b) As pH increases, [CO2] increases in tissues, causing more O2 release in tissue c) The R state is stabilized by CO2 binding, whereas the T state is stabilized by O2 binding d) About 38% of oxygen dissociates from hemoglobin in tissues e) Hemoglobin has a higher affinity for oxygen than carbon monoxide My guess is D. What following statement is TRUE concerning motifs and domains? a) Both motifs and domains are independently stable. b) Domains undergo dynamic individual changes that affect the entire protein c) B-a-ß loops, B barrels, and helix-turn-helix structure are types of domains d) Motifs and domains are part of secondary structural elements e) Ab initio computations predict motif folds accurately a majority of the time My guess is B. Which of the following is TRUE under the following conditions: an enzyme displaying Michaelis-Menten kinetics…
(a) The partial pressure of CO2 in the lungs can be varied rapidly by the rate and depth of breathing. For example, a common remedy to alleviate hiccups is to increase the concentration of CO2 in the lungs. This can be achieved by holding one’s breath, by very slow and shallow breathing (hypoventilation), or by breathing in and out of a paper bag.Under such conditions, pCO2 in the air space of the lungs rises above normal. Qualitatively explain the effect of these procedures on the blood pH.(b) A common practice of competitive short-distance runners is to breathe rapidly and deeply (hyperventilate) for about half a minute to remove CO2from their lungs just before the race begins. Blood pH may rise to 7.60. Explain why the blood pH increases.(c) During a short-distance run, the muscles produce a large amount of lactic acid (CH2CH(OH)COOH; K2 = 1.38 × 10 –4 M) from their glucose stores. Why might hyperventilation before a dash be useful?
Which 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.
Which of the following statements is true for Bohr effect: a. Bohr effect describes carbon monoxide poisoning. b. Bohr effect prevents oxygen binding to hemoglobin. c. Bohr effect allows effective oxygen discharge in tissues due to higher acidity (decreased pH) than in lungs. d. Bohr effect allows effective oxygen discharge in tissues due to lower acidity (increased pH) than in lungs.
In a study of O2 uptake by muscle at high altitude, a physiologist prepares an atmosphere consisting of 79 mole % N2, 17 mole % 16O2, and 4.0 mole % 18O2. (The isotope 18O will be measured to determine O2 uptake.) The total pressure is 0.75 atm to simulate high altitude. Calculate the mole fraction and partial pressure of 18O2 in the mixture.
Referring to the loading and unloading of oxygen from hemoglobin (as illustrated in the figure), which of the following statements is correct? Oxygen Dissociation Curve.png Group of answer choices When a person in ventilating at rest, 75% of hemoglobin is still oxyhemoglobin The percent saturation of hemoglobin is higher at higher partial pressures of oxygen A decrease in the pH of the blood would promote unloading oxygen from the hemoglobin All of these are correct