Use a diagram to illustrate how glucose is reabsorbed at the early portion of the proxim convoluted tubule. Label clearly the transporters involved.
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- As the text noted, two-thirds of the water and solutes that the body reclaims by reabsorption in nephrons occurs in the proximal tubule. Proximal tubule cells have large numbers of mitochondria and demand a great deal of oxygen. Explain why.Explain how the kidneys help to maintain the balance of acids and bases in extracellular fluid.Describe the process by which tubule cells move H+ intothe tubule lumen and HCO3–into the extracellular fluid.
- The epithelium lining of the proximal convoluted tubule has a brush border. Name the cell structure that forms the brush border and state its function.Identify the two types of specialized epithelial cells found within distal convoluted tubules and collecting tubules and ducts.Draw a schematic diagram showing the flow of water and salts in the proximal tubule of the kidney. In this diagram, put the lumen on the left side of the diagram and the extracellular fluids on the right side of the diagram. Indicate where the lumen is, where the extracellular fluid is, where the apical portion of the cell is, and show the location of the proteins that are responsible for the movement of water and salts and glucose reabsorption in this area of the kidney
- at the proximal convoluted tubule which of the following are required for glucose, amino acid and vitamin reabsorption? Na+ - K+ pump, Na+, Co- transporters, or all of these.List the two mechanisms by which tubule and collecting duct cells generate new HCO3−.Although the kidneys are probably best known as filtration organs, tubular reabsorption (the second step of urine formation in a nephron) actually reclaims molecules that have already been filtered from the blood. Describe the tubular reabsorption process, including the structures and molecules involved, and explain why these molecules need to be reabsorbed. please help
- All of the following are true about glucose recovery from the tubule fluid, except (choose the incorrect statement): A. All filtered glucose is released in the PCT unless plasma glucose abnormally high B. It is reabsorbed by coupling with Na+ recovery via a sodium glucose cotransporter C. Glucose recovery is made possible by low intracellular Na+ concentrations created by the NaK pump D. The CD recovers any glucose that is not reabsorbed by the PCT nephron loop and DCT this is not and will not be gradedExplain how the Proximal Convoluted Tubule reabsorbs solute and solvent out of the urine into the blood.Compare and contrast the following terms: Proximal convoluted tubule and distal convoluted tubule
