Certified Dietary Manager (CDM) Practice Exam

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Prepare for the Certified Dietary Manager Exam with flashcards and multiple choice questions. Improve your knowledge with hints and explanations.

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Which of the following is a characteristic of saturated fatty acids?

Liquid at room temperature
Filled with hydrogen
Contains one double bond
Found primarily in plant oils

The correct answer is: Filled with hydrogen

Saturated fatty acids are characterized by having no double bonds between the carbon atoms in their hydrocarbon chain, which means they are "saturated" with hydrogen atoms. This structure allows them to be more stable and generally solid at room temperature. The presence of single bonds throughout the chain contributes to this solid state. The other options describe characteristics of different types of fatty acids. For example, fatty acids that are liquid at room temperature are usually unsaturated, which contain one or more double bonds. The statement about containing one double bond pertains to monounsaturated fatty acids, and the claim regarding plant oils relates to unsaturated fatty acids that are prevalent in plant sources. Therefore, the attribute of being "filled with hydrogen" accurately defines saturated fatty acids, making it the correct choice.