Duncan was a subject in a clinical study that was designed to determine the effects of certain diets on health.While participating in the study,he was given a synthetic formula diet that provided vitamins,minerals,animal protein,purified water,and corn starch.Within a few weeks,Duncan developed patches of scaly skin on his arms and legs and bald spots on his head.When _____ was added to his formula,the signs of the nutritional deficiency disappeared.
A)polyunsaturated fat
B)lipase
C)oleic acid
D)calcium citrate

Question

Quizplus · Accepted Answer

The symptoms that Duncan developed are indicative of a deficiency in essential fatty acids, specifically polyunsaturated fats. Adding polyunsaturated fats to his diet would address this deficiency and improve his symptoms. Lipase is an enzyme involved in lipid digestion, oleic acid is a monounsaturated fatty acid, and calcium citrate is a mineral supplement, none of which would address Duncan's symptoms.

Duncan Was a Subject in a Clinical Study That Was