52. In which of the following situations will hemoglobin more easily release its

Question

52. In which of the following situations will hemoglobin more easily release its oxygen, when compared to normal circumstances? (A) high CO, (B) low phH (C) low temperature (D) high temperature (E) [in all cases except choice (C)] (F) none of these choices Use the letters from Figure 8 to complete the questions in this Part VII -Matching section. ALL of the letters in the diagram are used in this set of questions. Answers may be used once or more than once. 53. The "normal or typical Hb-0, association curve 54. Percentage 0, saturation of hemoglobin, 55. Partial pressure of O, mm Hg 56. Hb-0, association curve for blood pH> 7.4 57. Hb-0, association curve that occurs when body temperature is lower than normal 58. Hb-0, association curve for hypercapnic blood 59. Hb-0, association curve for a drop in 2,3- diphosphoglycerate below normal 60. Hb-0, association curve for outdated blood (from a blood bank) 80 60 40 20 20 40 60 80 100 Figure 8

Explanation / Answer

52. E

Low affinity to oxygen - Right shift of the curve

High affinity to oxygen - Left shift of the curve.

Part VII

53 - B

54 - Y

55- X

56 - A

57 - A

58 - A

59 - A

60 - C

The oxygen hemoglobin dissociation curve helps in understanding how oxygen is carried and released by blood.

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