31. The carbon dloxlde is transported via blood to lungs mostly (of in combination with hoemoglobin only (b) dissolved in blood plasma (c) in the form of bicarbonate ions (d) ar cabaminohaemoglobin and as carbonic acid.
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- A person was found to have very low levels of functional beta globin mRNA and therefore very low levels of the beta globin protein. What problems would this cause for assembling functional haemoglobin molecules?The hemoglobin in mammalian blood is usually thought ofsimply as increasing the amount of O2 that can be carried by eachliter of blood. However, in a lecture on hemoglobin, a respiratoryphysiologist made the following statement: “The presence ofhemoglobin in the blood also makes possible the rapid uptakeof O2 by the blood as it flows through the lungs.” Explain thelecturer’s point.2.How cigarette smoke trouble the aging of lung cells, through oxidative stress, casue COPD progression., Can you explain more details of oxidative stress in precise stentece ....as well tahnks so much 3. Hepatic congestion and peripheral oedema happen due to what kind of blood cannot enter the lungs and so returns to the venous system, ..... Thanks
- 7. Draw a diagram of the heme complexes in deoxyhemoglobin and oxyhemoglobin (complete porphyrin structures are not required, but show all iron coordination positions).Why do these aggregates not form when hemoglobin S is oxygenated?what is main difference between myoglobin and hemogloin and in what situations/circumstancees are each used and why?
- 30. assicuatuib if 2alpha and 2 beta chains to form adult hemoglobinWhich of the following statements about the I state of hemoglobin is FALSE? a, iron ion is pulled to the plane of the heme ring b. stabilized by ion pairing at the dimers interface c. 2,3-bisphosphoglycerate shifts the RT equilibrium towards the T state O d. tense state of hemoglobinWhich of the following statements regarding the transport of oxygen by hemoglobin is correct? Upon binding of oxygen to heme, a shift in the position of the distal His ultimately induces the switch from T to R states When fully bound to oxygen, AG(R-state)1. Considering a patient with severe pneumonia, resulting in impaired exchange of O2 and CO2 between the air and blood in the lungs? Would the oxygen (O2) levels in the blood be: (a) Normal (b) below normal (c) elevated 2. With respect to item #1, would the CO2 levels in the same patient’s blood be ? (a) Normal (b) below normal (c) elevated 3. With respect to item #1 and 2, assuming that other compensatory measures have not yet had time to act, what would happen to the patient’s blood considering thatCO2 reacts with water to form carbonic acid? (a) have a normal pH (b) be too acidic (c) not be acidic enough (that is, be too alkaline)The Respiratory System Examine an H&E slide of a transverse section of the trachea or main bronchus, and respond to the following. 1. Give the three major layers in its wall from within outwards.i.ii.ii. 2. At high power fucus on the the apical surface of the epithelium,what structures are there? 3. What is function of the apical cell surface structures? 4. Still at a high power, how many nuclear (cell) layers can you observe? 5. Why is the epithelium called pseudostratified? 6. Look for goblet cells; what three functions do mucus produced by these cells serve?i.ii.iii. 7. Besides globlet cells, what other four types of cells are present in the epithelium?I.ii.iii.iv. 8. The epithelium is supported by a lamina priopria of loose connective tissue. Which two connective tissue fibres occur in this sub-layer?i.ii. 9. The presence of seromucous glands indicates the submucosal layer. What function is served by secretions of these glands? 10. The presence of the cartilage indicates the…1. "Four minutes is all it takes for a confined space 'rescue' to turn into a body retrieval' exercise. After only four minutes without oxygen, it highly is likely that a worker who is not wearing a respirator will experience brain damage or death" (Sandy Smith, EHS Today, 2022). (a) Explain the characteristics of asphyxiation hazards at the workplace. (b) Compare the health effects of asphyxiation between Simple Asphyxiant Hazards (SAH) and Chemical Asphyxiant Hazards (CAH). (10) (10) (Total / Jumlah: 20)SEE MORE QUESTIONS
