alleryStart learning →Why will urine's specific gravity always exceed 1.0?
AUrine is warmer than water
BThe bladder pressurises it
CDissolved solutes are always present
DUrochrome is denser than iron
Answer & Solution
Correct answer: C. Dissolved solutes are always present
1. Specific gravity measures solutes per unit volume against pure water at 1.0.
2. Urine always carries dissolved solutes, so its specific gravity always exceeds 1.0.
3. The normal range runs 1.003 to 1.032; temperature and pressure play no role.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 25 "The Urinary System", section Urethra_
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