Vegetarians at Risk of Developing a Vitamin B₁₂ Deficiency for Which

question 47

Multiple Choice

Vegetarians at risk of developing a vitamin B₁₂ deficiency for which of the following reasons?

• A) Vegetarian diets inhibit absorption of the vitamin.
• B) Vegetarian diets provide insufficient amounts of the vitamin.
• C) The fibre content of vegetarian diets causes decreased storage by the liver.
• D) The fibre content of vegetarian diets causes increased excretion of the vitamin.

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Definitions:

Blood Pressure

A measure of the force that circulating blood exerts against the walls of blood vessels.

Tubular Reabsorption

The process by which the nephrons in the kidneys recover water and solutes from the filtrate and return them to the circulating blood.

Juxtaglomerular Apparatus

A structure in the kidney that regulates blood pressure by managing the release of renin.

Blood Pressure

The pressure of circulating blood against the walls of blood vessels, often measured for diagnosis since it is closely related to the force and rate of the heart's contractions and the diameter and elasticity of the arterial walls.