To explain: The various molecules normally found in the urine.
Concept introduction: Urine is the product of the excretory system that carries excess water and other excess molecules in it. Urine is produced after the nephrons of the kidney filter the water in the plasma of the blood. Various cellular by-products are rich in nitrogen which when accumulated is toxic to the system; therefore, it has to be eliminated. Urine is the medium through water-soluble molecules that are excreted from the body.
To explain: The three conditions that can be tested with urinalysis.
Concept introduction: Urine is the product of the excretory system that carries excess water and other excess molecules in it. Urine is produced after the nephrons of the kidney filter the water in the plasma of the blood. Various cellular by-products are rich in nitrogen which when accumulated is toxic to the system; therefore, it has to be eliminated. Urine is the medium through water-soluble molecules that are excreted from the body.
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Campbell Essential Biology with Physiology (6th Edition)
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