Why does carbon dioxide need to be transported in the form of bicarbonate ions? A. because it is a non polar (hydrophobic) molecule which is not readily soluble to the in the cytoplasm or plasma B. because it is immediately diffused out of the lung capilliaries C. because it has
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- 14) One of the feedback mechanisms for high H+ (low pH) levels in the blood is to increase respiratory rate. Explain why this helps to return blood pH to a neutral level (short answer please)1. Carbon dioxide released during respiration can affect the % oxygen saturation of haemoglobin. Carbon dioxide reacts with water to form carbonic acid. Which statements below explains the effect of carbon dioxide on haemoglobin? A. The release of hydrogen ions causes the pH to rise, which reduces haemoglobin's affinity for охуgen. B. The release of hydrogen ions causes the pH to rise, which increases haemoglobin's affinity for oxygen. C. The release of hydrogen ions causes the pH to fall, which increases haemoglobin's affinity for охygen. D. The release of hydrogen ions causes the pH to fall, which reduces haemoglobin's affinity for охуgen. E. None of the above can explain the change. 2. The following events occur when carbon dioxide enters an erythrocyte in a capillary. 1. Hydrogencarbonate ions diffuse into the plasma from the red blood cell 2. Dissociation of carbonic acid 3. Carbon dioxide reacts with water forming carbonic acid 4. Chloride ions diffuse into red blood cell from…13.Why does carbon dioxide need to be transported in the form of bicarbonate ions? Read and analyze the question and choices CAREFULLY; more importantly, ALWAYS CHOOSE the BEST answer. because it is a non polar (hydrophobic) molecule which is not readily soluble to the in the cytoplasm or plasma because it is immediately diffused out of the lung capilliaries because it has to be chemically mixed with water to snythesized carbonic acid. because it is a polar (hydrophilic) molecule which is readily soluble to the in the cytoplasm or plasma
- 1. carbon dioxide released during respiration can affect the % oxygen saturation of haemoglobin. Carbon dioxide reacts with water to form carbonic acid. Which statements below explains the effect of carbon dioxide on haemoglobin? A. The release of hydrogen ions causes the pH to rise, which reduces haemoglobin's affinity for oxygen. B. The release of hydrogen ions causes the pH to rise, which increases haemoglobin's affinity for oxygen. C. The release of hydrogen ions causes the pH to fall, which increases haemoglobin's affinity for oxygen. D. The release of hydrogen ions causes the pH to fall, which reduces haemoglobin's affinity for oxygen. E. None of the above can explain the change. 2. The following events occur when carbon dioxide enters an erythrocyte in a capillary. 1. Hydrogencarbonate ions diffuse into the plasma from the red blood cells. 2. Dissociation of carbonic acid 3. Carbon dioxide reacts with water forming carbonic acid 4. Chloride ions…Which 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 hemoglobin9. State what will happen to the PO2, PCO2 and/or pH (increase or decrease) under the following circumstances: a. a person hyperventilates: PCO2: pH: b. a person hypoventilates: PO2: PCO2: -pH: 10. Underline, circle or highlight the term that does not belong in each of the following groups a. Increase respiratory rate Decrease in Blood CO2 Alkalosis Acidosis b. Acidosis Increase in carbonic acid Decrease pH Increase pH c. Acidosis Hyperventilation Hypoventilation CO2 buildup d. High altitude Decrease PO2 Increase PCO2 Increased ventilation
- The direction that a gas diffuses is determined by a. the solubility of the gas in the solutions present on either side of a semipermeable membrane b. the partial pressure of the gas on either side of a semipermeable membrane c. the concentration of solutes in the solution into which the gas is dissolving d. none of the choices is correct3. When muscles are more active physiological conditions change to affect oxygen binding to Hemoglobin. Briefly describe the changes that occur and why this affects hemoglobin function. Draw the shifted curve on the graph above. A. What physiological conditions change during exercise (levels of what molecules are increasing/decreasing)? B. How do these molecules directly affect Hb’s structure ? What interactions does this stabilize ? C. How do these interactions affect the affinity of Hb for O2? How would this affect the binding curve for Hb? Draw on the graph provided. D. How will this shift in the binding curve affect the function of Hemoglobin ? E.Where does the physiological pO2 in the tissues fall on the O2 binding curve ? In the lungs ? Why is this physiologically important?11. Which of the following statement is TRUE about oxygen transport? I. Oxygen diffuses down a pressure gradient from the lungs into the blood plasma to red blood cells binds to hemoglobin. II. Carbon dioxide diffuses down its partial pressure gradient from the tissues into the blood plasma and red blood cells to air in alveoli. 7% is dissolved plasma, 23% binds with hemoglobin to form carbaminohemoglobin and 70% is in bicarbonate form. IlII. Hemoglobin gives up its oxygen in tissues where partial pressure of oxygen is low, blood is warmer, partial pressure of carbon dioxide is higher and pH is lower; these four conditions occur in tissues with high metabolisms. A. I but not II B. I and II only C. I and III only D. II and III only 12. Mario is a change smoker. One day, he suffered from difficult breathing immediately he went to the hospital for a check-up. The findings of the doctor for Mario's condition was emphysema. Is the doctor correct of his findings? A. No, because difficult…
- Which molecule has the greatest ability to stabilize the deoxy state of hemoglobin? Select one: a. all have equal ability b. ВPG C. CO d. H e. Co2Why does carbon dioxide need to be transported in the form of bicarbonate ions? because it is a non polar (hydrophobic) molecule which is not readily soluble to the in the cytoplasm or plasma because it is immediately diffused out of the lung capilliaries because it is a polar (hydrophilic) molecule which is readily soluble to the in the cytoplasm or plasma because it has to be chemically mixed with water to snythesized carbonic acid.Which reaction is catalyzed by carbonic anhydrase?a. HPO42- +H+ ↔ H2 PO4-b. CO2 + H2 O ↔ H2 CO3c. H2 PO4 − +OH− ↔ HPO42 − +H2 Od. H2 CO3 ↔ HCO3 − + H+