Active reabsorption of glucose occurs in the ?: (A) Distal tubule, (B) Proximal tubule, (C) Loop of henle, (D) Collecting ducts
Answer is B. B i.e. Proximal tubuleProximal convoluted tubule (early pa) reabsorbs almost all of glucose, amino acids, protein, lactate & inorganic phosphate and most (65%) of bicorbonate,Na+,11)0, K+ and CI Q. PCT is also an impoant site for secretion of organic acids and bases such as oxalate, urate, bile salts, H+ and catecholamines, along with toxins, drugs eg penicillin, salicylates and PAH. So its' a work horse of nephronQ.