Percentage that is Amino Acids 100 v Percentage that is absorbed Gluocose 100

Percentage that is amino acids 100 v percentage that

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(iv) …………………….. Percentage that is absorbed…………….. Amino Acids: 100% (v) …………………….. Percentage that is absorbed………………. Gluocose: 100% (vi) …………………….. Percentage that is absorbed………………. HCO-3: 90% 14. Why are the amino acids and glucose reabsorbed? 15. If the bicarbonate is not reabsorbed we would become ……………….. This would make us very ill. Acidotic. 16. List 2 substances that are secreted from our blood into the convoluted proximal tubule?
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(i) Uric Acid (ii) Organic Acids 17. The loop of Henle is all about ………………….. Concentration of urine. 18. In the descending limb of the loop of Henle ………….. is reabsorbed back into our blood. Water 19. In the ascending limb of the loop of Henle …………… is reabsorbed. 25% of the filtered sodium chloride 20. In the distal convoluted tubule these 2 substances are reabsorbed: (i) NaCl: 5% (ii) H2O 21. Our nephrons reabsorb NaCl (salt) and this enables water to be then be reabsorbed. The water moves because it follows the osmotic ……………………….. Gradient 22. In the distal convoluted tubule these 2 ions are secreted from our blood into the filtrate: (i) K+ (ii) H+ 23. Reabsorption is done mostly by the ………………………….. Proximal tubular Secretion is done mostly by the …………………………….. Proximal tubular Concentration of the filtrate is done mostly by the ……………………………….. Loop of Henle Fine tuning of the concentrations is done mostly by the ………………………….. Distal Tubule 24. One last bit of reabsorption occurs in the collecting duct. List the 3 substances that are reabsorbed: (i) Urea (ii) NaCl: 5% (iii)H2O
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25. List the 6 main components of the filtrate that are excreted. (i) H2O (ii) NaCl (iii) K+ (iv) HCO-3 (v) Creatinine (vi) Urea 26. Which of these six substances is used as a marker for glomerular filtration rate (because it enters the nephron via filtration and is not reabsorbed or secreted)? 27. The rate of water excretion is controlled by two hormones. List these 2 hormones: (i) Aldosterone (ii) ADH
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  • Spring '14
  • Kidney anatomy, Nephron, Distal Convoluted Tubule, Metanephric blastema, Glomerulus, loop of Henle

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