Essentials Of Human Anatomy & Physiology Plus Masteringa&p Access Card Lab Manual Package (12th Edition)
12th Edition
ISBN: 9780134811093
Author: Marieb & Keller
Publisher: PEARSON
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Question
Chapter 10, Problem 33CT
Summary Introduction
To review:
The mode of transfer of oxygen across the placenta from a mother to fetus with the help of fetal hemoglobin (HbF).
Introduction:
Blood formation starts early in the fetus by the 28th day of fetal life. The embryonic blood cells start circulating in the blood vessels. The blood of the fetus possesses a different type of hemoglobin known as fetal hemoglobin or hemoglobin F or HbF.
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Briefly explain why fetal Hb has a higher affinity for O2 when compared to the adult Hb under similar condition of pH and [BPG].
Explain in detail the role of fetal haemoglobin (HbF) in the delivery of oxygen to a fetus during pregnancy.
The PO2 of placental blood is about 40 mmHg. What are the O2 saturations of maternal and fetal hemoglobin at this PO2?
Chapter 10 Solutions
Essentials Of Human Anatomy & Physiology Plus Masteringa&p Access Card Lab Manual Package (12th Edition)
Ch. 10 - More than one choice may apply. Which would lead...Ch. 10 - Prob. 2MCCh. 10 - Prob. 3MCCh. 10 - Prob. 4MCCh. 10 - Which of the following is not typical of...Ch. 10 - Prob. 6MCCh. 10 - Prob. 7MCCh. 10 - Prob. 8MCCh. 10 - Prob. 9MCCh. 10 - Prob. 10MC
Ch. 10 - Prob. 11MCCh. 10 - Prob. 12MCCh. 10 - Prob. 13SAECh. 10 - Prob. 14SAECh. 10 - Prob. 15SAECh. 10 - Prob. 16SAECh. 10 - 17. Name the granular and agranular WBCs. Give the...Ch. 10 - Name the formed elements that arise from myeloid...Ch. 10 - Prob. 19SAECh. 10 - Describe the process of hemostasis. Indicate what...Ch. 10 - How can liver dysfunction cause bleeding...Ch. 10 - Prob. 22SAECh. 10 - Prob. 23SAECh. 10 - Prob. 24SAECh. 10 - Prob. 25SAECh. 10 - Prob. 26SAECh. 10 - Prob. 27CTCh. 10 - Prob. 28CTCh. 10 - Prob. 29CTCh. 10 - Prob. 30CTCh. 10 - Prob. 31CTCh. 10 - Prob. 32CTCh. 10 - Prob. 33CTCh. 10 - Prob. 34CTCh. 10 - Prob. 35CT
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- Why is fetal hemoglobin’s affinity for O2 greater than thatof maternal hemoglobin?arrow_forwardDiagram the methemoglobin reductase pathway and explain its importance in maintaining functional hemoglobin.arrow_forwardExplain how the clustering of hemoglobin genesimpacts the cellular strategy to regulate theirexpressionarrow_forward
- a) How does the fetal hemoglobin differ from the maternal hemoglobin in regards to structure and function? b) Explain the Bohr effect by drawing oxygen dissociation curves on a single graph that highlight changes in the hemoglobin affinity for O2 c) Describe the molecular basis of sickle cell anemia. Be specificarrow_forwardExplain how giving an alcoholic patient who has hypoglycaemia an Intravenous Infusion (IV) of glucose Alone can be fetal.arrow_forwardExplain how the following conditions affect the structure and function of hemoglobin. Sickle cell anemia, fetal hemoglobin and lowed pHarrow_forward
- Describe the major transportation modes of O2 and CO2 in the blood.arrow_forwardOutline why it is important that fetal haemoglobin has higher oxygen affinity than adult haemoglobin?arrow_forwardWhich of the following best explains why fetal hemoglobin (HbF) has higher affinity for oxygen than HbA? a. HbF binds 2,3-bisphosphoglycerate with lower affinity b. One of the coordination positions of HbF is occupied by an Asp residue c. Oxygen binding is not cooperative in HbF d. The Fe-O bond is shorter in HbF e. The hemes of HbF and HbA have different structuresarrow_forward
- Explain HCl Production?arrow_forward22. Please provide a biological explanation for why fetal hemoglobin has evolved to have lower affinity for BPG than adult hemoglobin.arrow_forwardWill a mutation from Distal histidine to phenylalanine shift the binding curve of hemoglobin?Will it shift the curve to the left or right, shift to myoglobin or no longer bind to O2?arrow_forward
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