Questions 19-20 19. Which of the following factors INCREASES hemoglobin’s affinity for oxygen? [MARK ALL THAT...

Questions 19-20

19. Which of the following factors INCREASES hemoglobin’s affinity for oxygen? [MARK ALL THAT APPLY]

a. decreased [H+ ] b. decreased temperature c. decreased PO2 d. decreased pH e. increased PCO2

20. You discover a new mutation in the gene coding for carbonic anhydrase. You observe that patients with this mutation exhibit:

a. less buffering capacity of the blood

d. higher PCO2 levels in blood

b. less bicarbonate [HCO3-] concentration in blood

e. Hb has a lower affinity for O2 than normal

c. any of these could indicate a problem with carbonic anhydrase

Expert Solution

19. The binding affinity of hemoglobin to oxygen drpends on factors such as partial pressure of oxygen, partial pressure of CO2, pH and temperature.
Increase in partial pressure of oxygen and increase in pH increase the binding capacity of hemoglobin to oxygen.
Decrease in partial pressure of CO2 and decrease in temperature also increases hemoglobin affinity for oxygen.
Decrease in H+ ions results in high pH which increases hemoglobin binding for oxygen.
So the correct option is a. decreased [H+ ] b. decreased temperature

20. Carbonic anhydrase is an enzyme found in RBC which helps in conversion pf CO2 to carbonic acid and bicarbonate ions. It helps regulate the blood pH and pCO2 levels in blood.
Low buffering capacity of the blood, high PCO2 levels in blood, low bicarbonate [HCO3-] concentration in blood and decreased affinity of Hb for O2 implies towards a problem with carbonic angydrase.
So the correct option is (c. ) any of these could indicate a problem with carbonic anhydrase

Sydney Mullin answered 1 year ago

Which of the following will decrease the affinity of oxygen for hemoglobin at low oxygen partial...

Which of the following will decrease the affinity of oxygen for hemoglobin at low oxygen partial pressures and shift the oxyhemoglobin saturation curve to the right, resulting in increased oxygen unloading for active tissues? Select one: a. high CO2 b. low H+ c. low temperature d. high hemoglobin levels e. low CO2

Which of these factors does not affect hemoglobin's affinity for oxygen? Group of answer choices temperature...

Which of these factors does not affect hemoglobin's affinity for oxygen? Group of answer choices temperature blood pH RBC metabolic activity electrolyte balance the PO2 of blood Each of the following factors affects the rate of external respiration except the Group of answer choices solubility of oxygen in plasma. PCO2 of the blood. PN2 of the alveoli. PO2 of the alveoli. thickness of the respiratory membrane. For maximum loading of hemoglobin with oxygen at the lungs, the Group of answer...

Question 2: Applications of finance (20 Mark) Please answer the following questions. Show all your workings...

Question 2: Applications of finance (20 Mark) Please answer the following questions. Show all your workings when calculations are required and round off your FINAL result to TWO decimal places. You are offered two options by the Waverley Toyota dealer for purchasing a Toyota Landcruiser 4WD. Option 1: Upfront where you pay $100,000 now. Option 2: 2- year monthly payment plan of $4500/month, starting today, with a final payment to be made 23 months from today. a) If the market...

2: Applications of finance (20 Mark) Please answer the following questions. Show all your workings when...

2: Applications of finance (20 Mark) Please answer the following questions. Show all your workings when calculations are required and round off your FINAL result to TWO decimal places. You are offered two options by the Waverley Toyota dealer for purchasing a Toyota Landcruiser 4WD. Option 1: Upfront where you pay $100,000 now. Option 2: 2- year monthly payment plan of $4500/month, starting today, with a final payment to be made 23 months from today. a) If the market interest...

6. Describe how increases and decreases in each of the following shift the binding affinity of...

6. Describe how increases and decreases in each of the following shift the binding affinity of hemoglobin for oxygen: pH, temperature, and CO2 partial pressure (include right vs. left shift in your response).

Which of the following should be included in the analysis of a project? (mark all that...

Which of the following should be included in the analysis of a project? (mark all that apply) Finance cost. opportunity cost. sunk costs. erosion costs.

Explain, how following conditions influence affinity of hemoglobin and myoglobin to oxygen: a) falling of pH...

Explain, how following conditions influence affinity of hemoglobin and myoglobin to oxygen: a) falling of pH in blood plasma from pH=7.4 to pH=7.2. b) falling of partial pressure of CO2 from 6 kPa to 2 kPa c) Increase in BPG level from 5 mM to 8 mM.

Which of the following are principles of the AICPA Code of Professional Conduct? (Mark all that...

Which of the following are principles of the AICPA Code of Professional Conduct? (Mark all that apply) Conservatism Integrity Due Care Objectivity and Independence

Which of the following processes are involved in the regeneration of the NAD+ pools? MARK ALL...

Which of the following processes are involved in the regeneration of the NAD+ pools? MARK ALL CORRECT ANSWERS. Fermentation Glycolysis Pyruvate Oxidation Pyruvate Reduction Citric Acid (TCA) cycle Anaerobic Respiration Aerobic Respiration Electron Transport Chair Chemiosmosis

Which of the following factors helps to explain the sustained increases in health care spending in...

Which of the following factors helps to explain the sustained increases in health care spending in the United States? a) Increasing cost of malpractice insurance b) Slow growth in labor productivity in healthcare compared with the economy as a whole c) Unnecessary, inefficient paperwork

Question