Substances normally dissolved in urine share which characteristic?

Substances normally dissolved in urine share which characteristic?

• A. Water soluble
• B. Inorganic
• C. Organic
• D. Waste products

Answer: (A)

Urine is an aqueous solution, so the substances that are normally dissolved in it are those that readily dissolve in water. This water solubility allows electrolytes like salts, small organic molecules such as urea and creatinine, and other waste products to be carried in solution and excreted. If a substance isn’t water soluble, it would tend to precipitate or not be excreted efficiently under normal conditions. While urine contains both inorganic and organic solutes, the common property tying them together is their ability to dissolve in water.

Urine is an aqueous solution, so the substances that are normally dissolved in it are those that readily dissolve in water. This water solubility allows electrolytes like salts, small organic molecules such as urea and creatinine, and other waste products to be carried in solution and excreted. If a substance isn’t water soluble, it would tend to precipitate or not be excreted efficiently under normal conditions. While urine contains both inorganic and organic solutes, the common property tying them together is their ability to dissolve in water.