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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What is starch primarily made of?

Amino acids and vitamins
A mixture of fats and proteins
A polysaccharide made of many molecules of sugar
Cellulose and roughage

The correct answer is: A polysaccharide made of many molecules of sugar

Starch is primarily a polysaccharide, which means it is a large molecule composed of numerous sugar units linked together. Specifically, starch is made up of glucose units, which are simple sugars that are connected in long chains. This structure allows starch to serve as a significant energy storage form for plants. When consumed, starch is broken down into glucose by enzymes in the digestive system, providing a valuable source of energy for the body. The other options refer to substances that do not accurately represent the composition of starch. For instance, amino acids and vitamins are components of proteins and micronutrients, respectively, but they do not make up starch. Similarly, a mixture of fats and proteins does not relate to the carbohydrate structure of starch. Additionally, cellulose, while it is also a polysaccharide composed of glucose, serves a different function in plants (providing structure) and is not a component of starch. Thus, understanding that starch is a complex carbohydrate made of sugar molecules is essential in recognizing its role in nutrition and dietary management.