The urinary system of humans is capable of removing excess amounts of all the following materials from the blood except: O water. O urea. O hydrogen ions. O plasma proteins.
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Step 1: The question asks which of the given options is NOT removed from the blood by the urinary system. Show more…
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Adi S.
Excretion Assignment Name: Date: 1. The chart below gives the concentration of various dissolved substances in the blood plasma, filtrate, and urine. The arterial blood is the blood coming into the glomerulus, the postglomerular blood is the blood leaving the glomerulus and entering the capillary network. The venous blood is the blood leaving the capillaries. The filtrate is the fluid produced by the filtering of the blood plasma in the glomerulus and collected in Bowman’s capsule. Urine is the filtrate after all the nutrients are reabsorbed back in the capillary network surrounding the nephron. Concentration of Dissolved Substances (mg/100mL of fluid) Dissolved Substances | Arterial Blood | Postglomerular Blood | Filtrate | Urine | Venous Blood Urea | 30 | 0 | 30 | 1800 | 15 Uric acid | 4 | 0 | 4 | 50 | 3.6 Glucose | 100 | 0 | 100 | 0 | 98 Salts | 900 | 0 | 900 | 2300 | 850 proteins | 8000 | 9000 | 0 | 0 | 8020 c. Offer an explanation why you do not find proteins in the filtrate. d. Offer an explanation why the levels of urea, uric acid and salts in the urine are higher in concentration compared to the filtrate. e. Offer an explanation for the difference in concentration of glucose between the filtrate and urine. f. Offer an explanation for the difference in concentration of glucose between the filtrate and the venous blood. g. Give the name of the chemical the nephron is most effective in removing from the blood and the rationale for your answer.
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