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In the parietal cell, when the co2 enters into the cell from blood by diffusion, it forms carbonic acid after reaction with water. This reactoion is catalyzed by carbonic anhydraze enzyme. Later the carbonic acid dissociates into a bicarbonate ion and a hydrogen ion.
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In the parietal cell, carbonic acid dissociates into a bicarbonate ion and a hydrogen ion. True...
21. What are the characteristics of the carbonic acid-bicarbonate buffer system (select all that apply? a...
21. What are the characteristics of the carbonic acid-bicarbonate buffer system (select all that apply? a CO2 is eliminated by the lungs b. Neutralizes HCl acid to yield carbonic acid and salt c. H2CO3 formed by neutralization dissociates into H2O and CO2 d. Shifts H+ in and out of cell in exchange for other cations such as potassium and sodium e. Free basic radicals dissociate into ammonia and OH-, which combines with Ho to form water 22. What are characteristics...
The pH of a bicarbonate-carbonic acid buffer is 6.62. Calculate the ratio of the concentration of...
The pH of a bicarbonate-carbonic acid buffer is 6.62. Calculate the ratio of the concentration of carbonic acid ( H2CO3 ) to that of the bicarbonate ion ( HCO3− ). ( Ka1 of carbonic acid is 4.2 × 10−7. ) [ H2CO3 ]/ [ HCO3− ] =
The pH of a bicarbonate-carbonic acid buffer is 5.96. Calculate the ratio of the concentration of...
The pH of a bicarbonate-carbonic acid buffer is 5.96. Calculate the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3−).(Ka1 of carbonic acid is 4.2 × 10−7.) [ H2CO3 ] [ HCO3− ] =
Question 35 1 pts cell synthesize The stomach acid from // carbon O parietal cell dioxide...
Question 35 1 pts cell synthesize The stomach acid from // carbon O parietal cell dioxide and water carbonic mucous cell anhydrase // amino O chief cell acids O chief cell // НСІ O parietal cell // bicarbonate and water Question 34 1 pts What statement about the small intestine villus is CORRECT? Cells at the villus tip are shed every 10- 14 days The Crypt of Lieberkuhn has immature enterocytes The villi are folds in the membrane of enterocytes...
When 0.125 M Lactic acid is ionized, it dissociates into hydrogen ion and lactate ion. Calculate...
When 0.125 M Lactic acid is ionized, it dissociates into hydrogen ion and lactate ion. Calculate the percentage ionization of the lactic acid whose ionization constant is 0.00014.
a. What product is formed more (choose one: carbonic acid, bicarbonate or carbonate) when excess hydrogen...
a. What product is formed more (choose one: carbonic acid, bicarbonate or carbonate) when excess hydrogen ions (H+) ions are in the water?
What is the pH of an equimolar mixture of bicarbonate ion and carbonate ion? What is...
What is the pH of an equimolar mixture of bicarbonate ion and carbonate ion? What is the pH of an equimolar mixture of carbonic acid and bicarbonate ion?
One common biological buffer is the carbonic acid (H2CO3) / bicarbonate (HCO3-) buffer. Which of the...
One common biological buffer is the carbonic acid (H2CO3) / bicarbonate (HCO3-) buffer. Which of the following statements describes what happens when a small amount of a strong acid is added to the buffer system: A. the amount of bicarbonate increases B. the amount of bicarbonate decreases C. the amount of carbonic acid increases D. the amount of carbonic acid decreases E. both b & c
Bicarbonate (HCO3-) is a common water quality constituent. Bicarbonate dissociates as a weak acid to give...
Bicarbonate (HCO3-) is a common water quality constituent. Bicarbonate dissociates as a weak acid to give carbonate (CO32-) as follows: HCO3- = CO32- + H+ pKa = 10.33 Determine whether HCO3-, or CO32-, is predominant in natural waters at pH = 7.90. I got (HCO_3)^- ; I would just like to double check!
What's the relationship between CO2, bicarbonate (HC03- ), and carbonic acid (H2CO3)? In what form is...
What's the relationship between CO2, bicarbonate (HC03- ), and carbonic acid (H2CO3)? In what form is most CO2 carried in our blood? What is the role of carbonic anhydrase in gas exchange?
21. What are the characteristics of the carbonic acid-bicarbonate buffer system (select all that apply? a CO2 is eliminated by the lungs b. Neutralizes HCl acid to yield carbonic acid and salt c. H2CO3 formed by neutralization dissociates into H2O and CO2 d. Shifts H+ in and out of cell in exchange for other cations such as potassium and sodium e. Free basic radicals dissociate into ammonia and OH-, which combines with Ho to form water 22. What are characteristics...
Question 35 1 pts cell synthesize The stomach acid from // carbon O parietal cell dioxide and water carbonic mucous cell anhydrase // amino O chief cell acids O chief cell // НСІ O parietal cell // bicarbonate and water Question 34 1 pts What statement about the small intestine villus is CORRECT? Cells at the villus tip are shed every 10- 14 days The Crypt of Lieberkuhn has immature enterocytes The villi are folds in the membrane of enterocytes...
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