Which of These Statements Correctly Describes Osmolarity

question 51

Multiple Choice

Which of these statements correctly describes osmolarity?

• A)A hypertonic solution has a higher concentration of solutes and a lower concentration of H₂O than an isotonic solution.
• B)When the body becomes dehydrated (H₂O deficit), urinary output increases as a compensatory measure.
• C) Vasopressin secretion is decreased when a deficit of water develops in the body.
• D) Diabetes insipidus often leads to hypotonicity of the body fluids.

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Definitions:

Buffy Coat

The fraction of an anticoagulated blood sample that is composed of white blood cells and platelets, visible as a thin layer between the red blood cells and plasma in centrifuged blood.

Centrifuge Tube

A laboratory vessel specifically designed to withstand the forces generated during a centrifugation process, used for separating mixtures.

Platelets

Small blood cells involved in clotting, helping prevent bleeding by forming plugs in vessel injuries.

Percent Saturation

The ratio of the current amount of a substance to the total possible amount of that substance that could be held, absorbed, or dissolved by a solution.