0
Mechanisms of bicarbonate reabsorption and hydrogen ion excretion by the kidney?
Wiki User
∙ 9y ago
Bicarbonate (HCO3-) does not have a transporter, so its reabsorption involves a series of reactions in the tubule lumen and tubular epithelium. It begins with the active secretion of a hydrogen ion (H+) into the tubule fluid via a Na/H exchanger: In the lumen, the H+ combines with HCO3- to form carbonic acid (H2CO3). Luminal carbonic anhydrase enzymatically converts H2CO3 into H2O and CO2. CO2 freely diffuses into the cell. In the epithelial cell, Cytoplasmic carbonic anhydrase converts the CO2 and H2O (which is abundant in the cell) into H2CO3. H2CO3 readily dissociates into H+ and HCO3-. HCO3- is facilitated out of the cell's basolateral membrane.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
What is the bi in bicarbonate?
It is actually Hydrogen. Sodium Bicarbonate is properly known as Sodium Hydrogen Carbonate, and sometimes Sodium Acid Carbonate (Hydrogen makes it an acid)CompareNaHCO3 (sodium bicarbonate)Na2CO3 (sodium carbonate)Since sodium carbonate takes two sodium ions for each carbonate, and bicarbonate has only one, ratio of carbonate ions to sodium ion doubles, hence the term bicarbonate.
What is hydrogen carbonate used for?
hydrogen carbonate is also known as baking soda or bicarbonate
What is another name for potassium hydrogen carbonate?
Potassium bicarbonate.
What gas is given off when you react acid with bicarbonate of soda?
Hydrogen, always hydrogen when reaction acids
What is HgHCO32?
Hg(HCO3)2 is mercury(II) hydrogen carbonate or mercury(II) bicarbonate
What are the three mechanisms of hydrogen ion removal?
The three mechanisms of hydrogen removal are the Bicarbonate buffer system, the respiratory system and kidney function.
Does carbonate and bicarbonate both have hydrogen?
NO, only the Bicarbonate contains Hydrogen (H.) A Carbonate is represented as (CO3)^-2, whereas A Bicarbonate is (HCO3)^-1
What are the similarities between the distal tubule and the proximal tubule?
- proximal tubule : • Selective reabsorption of nutrients from filtrate back into blood by active and passive transport. • Within proximal tubule, pH is controlled by secretion of hydrogen ions (H1) and reabsorption of bicarbonate ions (HCO32). - distal tubule • Selective reabsorption of nutrients from blood into nephron by active transport. Distal tubule helps regulate potassium (K1) and salt (NaCl) concentration of body fluids. • As in proximal tubule, pH is controlled by tubular secretion of hydrogen ions (H1) and reabsorption of bicarbonate ions (HCO32).
What is the bi in bicarbonate?
It is actually Hydrogen. Sodium Bicarbonate is properly known as Sodium Hydrogen Carbonate, and sometimes Sodium Acid Carbonate (Hydrogen makes it an acid)CompareNaHCO3 (sodium bicarbonate)Na2CO3 (sodium carbonate)Since sodium carbonate takes two sodium ions for each carbonate, and bicarbonate has only one, ratio of carbonate ions to sodium ion doubles, hence the term bicarbonate.
What elements make bicarbonate?
Hydrogen, carbon, and oxygen.
What is hydrogen carbonate used for?
hydrogen carbonate is also known as baking soda or bicarbonate
What is chemical name for HCO3?
The bicarbonate ion (hydrogen carbonate) is an anion with the empirical formula HCO3− and a molecular mass of 61.01
What is the balance formula calcium bicarbonate hydrogen sulfate?
Calcium bicarbonate formula is Ca (HCO3)2. The other name is Calcium hydrogen carbonate. The Chemical Guru.
What area of the nephron is the site of hydrogen ion excretion?
Hydrogen ion excretion is the result of standard kidney (nephron) function, when processing fluids in the body. This is done at the bottom of the kidneys.
Describe the mechanisms by which the kidneys remove hydrogen ions from the body?
If you are using Marieb and Hoehn Human Anatomy and Physiology the answer is explained on page 1052 and following under the heading of Renal Mechanisms of Acid Base Balance. Essentially, the kidneys 1) reabsorb or generate new HCO3- tubule cells shunt HCO3- into peritubular capillary blood to conserve it 2) excrete HCO3- type A intercalated cells of the collecting ducts generate new HCO3- ions by secretion/excretion HCO3- = bicarbonate ion which dissociates into H+ H+ can be made into HCO3-
Is there aluminium in bi-carbonate of soda?
No. bicarbonate of soda (sodium bicarbonate) is made of sodium, hydrogen, carbon, and oxygen.
What is the chemical name of ammonium bicarbonate?
The name is ammonium bicarbonate of ammonium hydrogen carbonate. The formula is NH4HCO3
