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Which of the following statements is true about hemoglobin?

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Question: Question 35 Not Answered Marked Out Of 100 P Flag Question Which Of The Following Statements About Hemoglobin Is True? Select One: A. Oxyhemoglobin And Deoxyhemoglobin Differ Markedly In Their Affinity For Oxygon. B. The Glycolysis Intermediate BPG (2,3-bisphosphoglycorate) Raises The Oxygen Affinity Of Hemoglobin 0 The statements about hemoglobin that are true are the following: d. Oxyhemoglobin (that is, hemoglobin bound to oxygen) and deoxyhemoglobin differ markedly in quaternary structure. Explanation: The structure of deoxyhemoglobin called T state, on the other side oxyhemoglobin is called R state

Which of the following statements is true about hemoglobin? Multiple Choice Hemoglobin binds to bicarbonate ions. Hemoglobin combines with hydrogen ions to form bicarbonate ions in the capillaries near the tissues Hemoglobin functions to carry oxygen from the lungs to the tissues and hydrogen ions from the tissues to the lungs -Both hemoglobin and myoglobin contain a prosthetic group called heme, which contains a central iron atom. -By itself, heme is not a good oxygen carrier. It must be part of a larger protein to prevent oxidation of the iron atom. -Hemoglobin and myoglobin are heterotetramers Select the five true statements. 1. By itself, heme is not a good oxygen carrier. It must be part of a larger protein to prevent oxidation of the iron. 2. Molecular oxygen binds irreversibly to the Fe (II) atom in heme. 3. Heme is composed of an organic protoporphyrin component and a metal atom. 4

14. Which of the following statements is true about Hb F? a. It is the major hemoglobin during fetal life. b. It is increased in concentration in children up to 2 years old. c. It is evenly distributed at low concentration in all RBCs of an adult. d. It has a low oxygen affinit a. calculations that provide size and hemoglobin content of RBCs. b. provides information for hematocrit c. allow for calculations of oxygen in hemoglobin d. abbreviated MCV, MCA, and MCC. b. Which of the following statements is true about performing an accurate sed rate procedure? a. tube must be read at exactly two hours

Which of the following is TRUE regarding sickle cell disease? A. Solubility of HbgS & HbgA start off the same when oxygenated B. As HgbS is DEOXYGENATED, it creates unstable thin fiber bundles that cross-link with each other and form stable polymers (sickling) C. RBCs return to normal shape when hemoglobin is reoxygeneated (unsickling) D Which 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 Which of the following statements is true about fetal hemoglobin? (Check all that apply) Fetal hemoglobin has only one subunit Fetal hemoglobin has a higher affinity for oxygen than maternal hemoglobin Fetal hemoglobin has a lower affinity for oxygen than maternal hemoglobin Fetal hemoglobin has four subunits however, it is not the same as adult hemoglobin Fetal hemoglobin has a lower affinity.

Question 35 Not Answered Marked Out Of 100 P Flag

Which of the following statements about the oxygen-hemoglobin interaction is true? The Correct Answer is. The binding of one oxygen molecule to hemoglobin stimulates the binding of other oxygen molecules C. Hemoglobin measurements must be performed in a hospital or reference lab. D. Hemoglobin and hematocrit levels will always be elevated in patients with anemia. Question 13 4 out of 4 points Which of the following statements is true? Selected Answer: D. All of the above statements are true. Answers: A. White blood cells protect against pathogens by producing antibodies Which of the following statements is true of thalassemia? Thrombocytes tend to stick together and form blood clots. Thalassemia is always caused by diet and environmental factors, not genetic makeup. Thalassemia is also known as erythroblastic anemia and involves a reduced amount of hemoglobin in the blood Which of the following statements about sickle-cell hemoglobin is TRUE? a. It dramatically weakens the binding of hemoglobin to oxygen b. It leads to oxydation of heme to Fe(3+) c. It reduces the pH-induced binding affinity changes of hemoglobin to oxygen. d. It involves a mutation far from the site of oxygen bindin 14. Which of the following statements about the figure is true? a. It shows when icefish diverged from red-blooded fish. b. It shows the lineages of icefish that have lost functional myoglobin. c. It shows the lineages of icefish that have regained functional hemoglobin. d. It shows the lineages of icefish without functional hemoglobin. e

Which of the following statements about the oxygen-hemoglobin interaction is true ? The binding of one oxygen molecule to hemoglobin stimulates the binding of other oxygen molecules. Most carbon dioxide is carried from the body tissues to the lungs _____. as bicarbonate ions (HCO3 -) Sun Mar 11 2012 · c Form the anti-parallel β-sheets. Are hydrogen bonded to peptide bonds four amino acids away in th chain. Answer. Top. 5. All of the following statements regarding the R-groups in an α-helix are true EXCEPT: Runs of negative R-groups will disrupt the helix. Runs of positive R-groups will stabilize the helix

14. Which of the following statements about the Bohr effect is true? A. Lowering the pH shifts the oxygen dissociation curve of hemoglobin to the right (lower affinity). B. The acidic environment of an exercising muscle allows hemoglobin to bind O2 more strongly. C. The affinity of hemoglobin for O2 is improved by high concentrations of CO2. D 5. Which of the following statements describes the oxygen binding curve of hemoglobin? A. Each of the four oxygens bind with equal facility B. The binding of the first oxygen molecule enhances the binding of the other three oxygen molecules C. The binding of the first oxygen molecule makes the binding of the other three oxygen molecules more. All of the following statements are true except 2,3-bisphosphoglycerate decreases the affinity of hemoglobin for oxygen. hemoglobin will bind more oxygen when the partial pressure is low than when the partial pressure is high. oxygen dissociates more readily from hemoglobin as ph decreases. increased partial pressure of carbon dioxide increases.

Which of the following statements about hemoglobin is TRUE

All of the following statements are true except 2,3-bisphosphoglycerate decreases the affinity of hemoglobin for oxygen. hemoglobin will bind more oxygen when the partial pressure is low than when the partial pressure is high. oxygen dissociates more readily from hemoglobin as ph decreases. increased partial pressure of carbon dioxide increases oxygen dissociation from hemoglobin. decreasing. Which of the following statements is true of sickle-cell hemoglobin (Hb S)? O The mutation in Hb S lowers its affinity for 2,3-BPG compared to normal hemoglobin (Hb A), thereby increasing its affinity for oxygen. O The mutation in Hb S affects subunit interactions within the hemoglobin tetramer

Each of the following statements about metformin as a treatment for type 2 diabetes mellitus is true except: It lowers hemoglobin AIc concentrations by 1.0% to 1.5%. It is not associated with weight gain. When metformin is used as monotherapy, hypoglycemia is a serious side effect. It has been shown to reduce all-caus Which of the following statements would be consistent with these test results? The patient may complain of getting easily fatigued. Haptoglobin has been depleted. Patient may be experiencing intravascular RBC hemolysis. Correct! All of the above Question 4 0 / 2 pts Which type of hemoglobin is formed to enable RBC transport of CO2 Which of the following statements is (are) true about hemoglobin? a. Hemoglobin functions to carry oxygen from the lungs to the tissues and hydrogen ions from the tissues to the lungs. b. Hemoglobin binds to bicarbonate ions. c. Hemoglobin is used to carry oxygen to the tissues. d

Which of the following statements about hemoglobin and myoglobin structure are true? Select the five true statements. a) Each hemoglobin or myoglobin molecule can bind four oxygen molecules. b) Hemoglobin is a heterotetramer, whereas myoblobin is a.. Problem: Which of the following statements about hemoglobin and myoglobin structure are true? Select the five true statements.A. Both hemoglobin and myoglobin contain a prosthetic group called heme, which contains a central iron atom.B. Heme is composed of an organic protoporphyrin component and a metal atom.C. Hemoglobin is a heterotetramer, whereas myoglobin is a monomer.D. Molecular oxygen.

Which of the following statements are true? I. Each white blood cell contains millions of hemoglobin molecules. II. In a sample of blood, there are more red blood cells than white blood cells. III. HIV destroys red blood cells. IV. All blood cells come from one pool of stem cells C. Input validation is expected to verify the data type of the value entered by the user. D. Wed Sep 18 2019 · Which 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 [6 pts) Indicate which of the following statements is True (T) or False (F) When water interacts with hydrophobic molecules, it becomes more ordered and entropy of the system increases The hydrophobic effect is predominant in protein stability The Ramachandran ploy shows combinations of dihedral angles in a polypeptide chain Which of the following statements is true concerning hemoglobin (Hb) variants? A. This hemoglobin quaternary structure is composed of 4 gamma-globin polypeptides and has an abnormally high oxygen affinity: A. Hemoglobin Constant Spring. B. Hemoglobin S. C. Hemoglobin Lepore. D

Question: Which Of The Following Statements Is True About

(3) Which of the following statements are TRUE? a. Lowering the pH shifts the oxygen dissociation curve of hemoglobin to the right. TRUE. Lowering the pH (which increases the concentration of H +) stabilizes the T state of hemoglobin, decreasing its affinity for oxygen, which shifts the curve to the right The following are the true statements: 1. Heme is not a good oxygen carrier by itself, it must be a component of a larger protein to inhibit oxidation of the iron atom. 2. Heme comprises an organic protoporphyrin constituent and a metal atom. 3. Both myoglobin and hemoglobin comprise a prosthetic group known as heme that comprises a central. Correct answers: 1 question: Which of the following statements are true? i. each white blood cell contains millions of hemoglobin molecules. ii. in a sample of blood, there are more red blood cells than white blood cells. iii. hiv destroys red blood cells. iv. all blood cells come from one pool of stem cells. a. ii and iv only b. i and iv only c. ii and iii only d. i, iii, and iv only e. i, ii.

Biochem Ch. 7 Flashcards Quizle

Which of the following statements is true concerning human blood? a) The blood of all normal humans contains red and white cells, platelets, and plasma. b) Some human populations normally lack the ability to produce plasma. c) Proteins are not normal components of human blood State whether the following statements are true or false. The affinity of haemoglobin for carbon monoxide is more than its affinity for oxygen. A. True. B. False. Answer. Correct option is . A. The affinity of hemoglobin for oxygen changes as blood travels from the lungs to the body tissues and back to the lungs again. One could expect. The ADA now recommends that the hemoglobin A1c test be used for both diagnosis and monitoring blood glucose levels. The cutpoint for diabetes is an A1c of 6.5. Persons with an A1c of 5.7%-6.4% are classified as being at high risk for diabetes within 5 years. An A1c between 4.0%-5.5% is defined as within normal limits

Chapter 5 Sapling + objectives Flashcards Quizle

Which of the following statements regarding hemoglobin is FALSE? Each hemoglobin molecule can bind 4 diatomic oxygen molecules. O Cooperative binding of O2 to hemoglobin results in a rapid increase in oxygen saturation at lower partial pressures of oxygen O Oxygen binds the globin chains in hemoglobin Which of the following statements about hemoglobin and myoglobin structure are true? Select the five true statements. a) Each hemoglobin or myoglobin molecule can bind four oxygen molecules. b) Hemoglobin is a heterotetramer, whereas myoblobin is a monomer. c) Molecular oxygen binds irreversibly to Fe2+ in heme. d) Both hemoglobin and myoglobin. So this is again not true. And after that last one e hemoglobin contents Effie triple assigned. This is not true. The illusion is Onley in metta met hemoglobin that now that is one form of the hemoglobin where Effie Tripolis science represent in all other form Off him a blow be every two plus and settles in north a f e three plus I Which of the following is TRUE concerning sickle cell anemia? A) It is an autoimmune disease in which the body destroys its own hemoglobin. B) It is a hereditary disease involving abnormal hemoglobin. C) It is an acquired disease in which the body cannot absorb iron Hemoglobin then takes the carbon dioxide and return them back to the lungs. Therefore, hemoglobin serves to deliver oxygen needed for cellular metabolism and removes the resulting waste product, carbon dioxide. Hemoglobin consists of several polypeptide chains. Human hemoglobin is composed of two α (alpha) and two β (beta) subunits

RODAK HEMATOLOGY CH 10 HEMOGLOBIN METABOLISM Flashcards

  1. Which of the following statements are true/false? (1) The blood transports C O 2 comparatively easily because of its higher solubility. (2) Approximately 8.9 % of C O 2 is transported being dissolved in the plasma of blood. (3) The carbon dioxide produced by the tissues,diffuses passively into the blood stream and passes into red blood corpuscles and react with water to form H 2 C O 3
  2. B 6. B) hemoglobin is made up of four chains (α, β) with an iron atom at the center. C) the human body produces from 6 to 40 g of hemoglobin a day depending on demand. D) temperature affects the affinity of hemoglobin for oxygen. E
  3. 2. Which of the following statements are true? A Blood consists of plasma and formed elements. B Plasma is a straw-colored clear liquid containing cellular elements and solutes. C Plasma is approximately 92% water. D All of the above statements are also true of serum. 3. Fill in the following blanks to characterize red blood cells
  4. the following statements as true (T) or false (F). If the statement is false, correct it to make it a true statement. a. Red blood cells are also known as leukocytes. b. White blood cells with granules in their cytoplasm are known as agranulocytes. The granulocytes include the neutrophils, eosinophils, and basophils

Which of the following statements about hemoglobin and myoglobin structure are true? Select the five true statements. If you can't find your institution, please check your spelling and do not use abbreviations Which of the following statements is not true regarding this diagnosis? a) The cause of beta-thalassemia is genetic. b) Beta-thalassemia major is a grave condition and has a high mortality rate The average human adult has more than 5 liters (6 quarts) of blood in his or her body. Blood carries oxygen and nutrients to living cells and takes away their waste products. It also delivers immune cells to fight infections and contains platelets that can form a plug in a damaged blood vessel to prevent blood loss Which of the following is the normal value for a platelet count? 140,000 to 400,000: Which of the following best describes erythrocyte indices: calculations that provide size and hemoglobin content of RBCs: Which of the following statements is true about performing accurate sed rate procedure? counter must be free of vibration

Which of the following statements is true regarding the respiratory rate of a newborn? A) The respiratory rate of a newborn is approximately 30 respirations per minute. B) The respiratory rate of a newborn is slow. C) The respiratory rate of a newborn varies between male and female infants The bile contains bile pigments (bilirubin and biliverdin) as the break down products of hemoglobin of dead RBCs, all of the following statements are true about it EXCEPT: its floor is predominately formed by the inguinal ligament its deep ring is located just lateral to the inferior epigastric arter a)hemoglobin determinatin b)hematorit determination c)erythrocyte sedimentation rate d)red blood cell (RBC) count Answer: c)erythrocyte sedimentation rate Question: Which of the following is the blood type of the universal donor? a)O b)A c)B d)AB Answer: a)O True/False Question: Which of the following statements is false about disease states. Definition. exchanges oxygen and carbon dioxide. The functions of pseudostratified ciliated columnar epithelium are to: trap dirt and remove it from the air and to moisturize and warm the air. Term. When people aspirate liquids or food into their lungs, the liquid or food most commonly enters the

Funds CH 41* Flashcards Quizle

Given the following blood parameters, compute the total oxygen content (dissolved + HbO2) of the blood in ml/dl: Hb = 16; PO2 = 625 Hg; SO2 = 100%. D) 23.3 ml/dl: Which of the following are true regarding fetal hemoglobin (HbF)? C) It delivers more oxygen to tissues at low PaO2 than normal Hb Which of the following statements correctly explains why sports anemia occurs? asked Sep 16, 2016 in Nutritional Science by Jen66. A) Exercising athletes consume more oxygen than the body's hemoglobin can transport. B) Most athletes don't consume enough iron to have fully functioning hemoglobin. C) Strenuously exercising athletes have an. Concerning hemoglobin levels, during the teen years. a. boys need more and girls need less. b. girls need more and boys need less. c. both boys and girls need more. d. both boys and girls need less. 2. Payton is 16 and his brother Eli is 10. When trying to pick the winner of the Super Bowl, a

PT 3: Sickle Cell Disease (FINAL) Flashcards Quizle

Answered: Which of the following statements is bartleb

Which of the following does NOT regulate hemoglobin synthesis? 1. Oxygen tension in the kidneys 2. Specific enzymes 3. None of the choices ____ 34. Concerning iron's metabolism, all these statements are TRUE, except: A. Humans have the ability of absorbing dietary iron efficiently C. Calcium may inhibit intestinal absorption of iron B BSC2347 Module 1,2,3,4,6,7,8,9,10 Quiz,BSC2347 Module 5 Mid Term Exam(3 Versions),BSC2347 Module 11 Final Exam(3 Versions)(NEWEST,2021):Human A & P II : R [6 pts) Indicate which of the following statements is True (T) or False (F) When water interacts with hydrophobic molecules, it becomes more ordered and entropy of the system increases The hydrophobic effect is predominant in protein stability The Ramachandran ploy shows combinations of dihedral angles in a polypeptide chain 42. Which of the following statements about hemoglobin is INCORRECT? A.Hemoglobin contains iron. B.Hemoglobin has proteins associated with it. C.Hemoglobin will combine with oxygen. D.Hemoglobin will not combine with carbon dioxide. 43. Platelets: A.phagocytize bacteria B.are responsible for blood type C.initiate clotting D.transport oxygen 44

Which of the following statements is true about fetal

Which of the following statements about hemoglobin and myoglobin structure are true? Select the five true statements. 1. By itself, heme is not a good oxygen carrier. It must be part of a larger protein to prevent oxidation of the iron. 2. Molecular oxygen binds irreversibly to the Fe(II) atom in heme. 3 All of the following are TRUE regarding the hemoglobin component of the CBC A. normally, the hemoglobin value is about 1/2 of the hematocrit value B. marked leukocytosis causes a false increase C. reference ranges are gender dependent D. O 2 is transported to tissues and CO 2 back to lungs via hemoglobin Which of the following is true about blood plasma? A) It is about 90% water B) It is the same as serum but without the clotting proteins. C) The main protein component is hemoglobin. D) It contains about 20 dissolved components

Which Of The Following Statements About The Oxygen

  1. 1. Which statement is true concerning blood cells? A. White blood cells take oxygen to body tissue. B. White blood cells contain hemoglobin. C. White blood cells contain a protein that releases oxygen. D. Red blood cells contain a protein that binds with oxygen
  2. Consider the following four statements (I - iv) and select the correct option stating which ones are true (T) and which ones are false (F). <br> (i) Formation of oxyhaemoglobin occurs on alveolar surface. <br> (ii) During gaseous exchange the gases diffuse from high particle pressure to low partial pressure. <br> (iii) Carbon dioxide cannot be transporteed width haemoglobin. <br> (iv.
  3. Which of the following statements is true regarding the respiratory rate of a newborn? Which of the choices below is NOT A FACTOR that promotes oxygen binding to and dissociation from hemoglobin? number of res blood cells. 61. The factors responsible for holding the lungs to the thorax wall are _____
  4. State if the following statement is true or false. Correct the statement if it is false. Liver produces bile pigments from the hemoglobin of broken RBCs
  5. 15) All of the following are true about cyanosis except: a) For cyanosis to manifest there needs to be 5 gm% of deoxygenated hemoglobin in the capillaries. b) Patients with normal hemoglobin manifest cyanosis at higher SaO2 values than patients with anemia. c) Cyanosis can be caused by excess methemoglobin, which is HbFe +3
  6. MCQ Exam ON : OBS_and_Gayne Questions . The following statements are true regarding fetal Hemoglobin except
  7. A researcher investigating the effect of temperature on hemoglobin saturation collected the data represented in the graph. Which of the following claims is most consistent with the data? A) The greatest delivery of oxygen from the blood to the surrounding tissues occurs at 37℃. B) Increasing blood pH results in more oxygen unloading in tissues

C Hemoglobin measurements must be performed in a hospital

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Which of the following statements regarding glucose is not true? A vegan stew served with brown rice can provide more protein than a beef stew served with a dinner roll. A supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained Which of the following statements is true? Choose all answers that are correct. a. The manubrium is inferior to the xiphoid process. b. Floating ribs are not attached to the vertebral column. c. Vertebrochondral ribs are classified as false ribs. d. The sternal angle is a result of the fusion of the body and the xiphoid process. e Each hemoglobin molecule is made up of four heme groups surrounding a globin group, forming a tetrahedral structure. Heme, which accounts for only 4 percent of the weight of the molecule, is composed of a ringlike organic compound known as a porphyrin to which an iron atom is attached. It is the iron atom that binds oxygen as the blood travels between the lungs and the tissues