Question

Give reasons for the following: (HOTS)
a) Re absorption is an important step in urine formation
b) The amount of water in the urine is variable

Answer 1

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a) Reabsorption Moves Nutrients and Water Back into the Bloodstream. The glomerulus filters water and small solutes out of the bloodstream. The resulting filtrate contains waste, but also other substances the body needs: essential ions, glucose, amino acids, and smaller proteins.

b) Urine is an aqueous solution of greater than 95% water. Other constituents include urea, chloride, sodium, potassium, creatinine and other dissolved ions, and inorganic and organic compounds.

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