primary active transport of sodium occurs in the proximal convoluted tubule cells at the walls.
primary active transport of sodium occurs in the proximal convoluted tubule cells at the walls.
where does primary active transport of sodium occur in the proximal convoluted tubule cells?
walls
renal glucose reabsorption









































renal glucose reabsorption is the part of kidney (renal) physiology that deals with the retrieval of filtered glucose, preventing it from disappearing from the body through the urine.









































if glucose is not reabsorbed by the kidney, it appears in the urine, in a condition known as glycosuria. this is associated with diabetes mellitus.









































firstly, the glucose in the proximal tubule is co-transported with sodium ions into the proximal convoluted tubule walls via the sglt2 cotransporter. some (typically smaller) amino acids are also transported in this way.
renal glucose reabsorption
the distal convoluted tubule has a different structure and function to that of the proximal convoluted tubule. cells lining the tubule have numerous mitochondria to produce enough energy (atp) for active transport to take place. much of the ion transport taking place in the distal convoluted tubule is regulated by the endocrine system. in the presence of parathyroid hormone, the distal convoluted tubule reabsorbs more calcium and secretes more phosphate. when aldosterone is present, more sodium is reabsorbed and more potassium secreted. atrial natriuretic peptide causes the distal convoluted tubule to secrete more sodium.









































section::::function.:connecting tubule.
nephron