Which of the following mechanisms is/are used by the kidneys to regulate the pH of the...
Which of the following mechanisms is/are used by the kidneys to regulate the pH of the blood? (Select ALL that apply!)
a. Hydrogen ions are secreted from the proximal and distal convoluted tubules and the collecting ducts.
b. Hydrogen ions are reabsorbed from the nephron loop.
c. Bicarbonate ions can be secreted.
d. Bicarbonate ions are excreted from the alveoli of the lungs
Homework Answers
Kidneys essentially regulate the ph of the blood by the secretion of H+ ions by aldosterone and ADH in the collecting duct to maintain proper pH. Also, the bicarbonate ions are generated which are essentially lost in buffering during cell metabolism. So, the options a and c are correct.
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Which of the following mechanisms
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A How can urine contain a higher concentration of win the verton) than the the A Urine mot since the process is elve diffusion B Reabsorption of water in the loop of the nephron and collecting ducts leaves behind a more concentrated urine. C. All stages in the kidney involve active transport . Une can be hypertonic for small moleculesidit is v on for...
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