Which of the following is a carbohydrate composed of many sugar units?

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Prepare for your College Biology Exam 1 with flashcards and multiple choice questions. Test your understanding with detailed explanations and hints to ensure success in your biology exam!

Multiple Choice

Which of the following is a carbohydrate composed of many sugar units?

Explanation:
Carbohydrates come in simple sugars and long chains of sugars. When many sugar units are linked together, they form polysaccharides, which are polymers of sugar monomers. That’s exactly what the described option is: a carbohydrate made up of many sugar units. Lipids are not built from sugars; they’re fats made from fatty acids and glycerol. Proteins are polymers of amino acids, not sugars. So the description points to a polysaccharide, the carbohydrate composed of many sugar units. Examples include starch, glycogen, and cellulose.

Carbohydrates come in simple sugars and long chains of sugars. When many sugar units are linked together, they form polysaccharides, which are polymers of sugar monomers. That’s exactly what the described option is: a carbohydrate made up of many sugar units. Lipids are not built from sugars; they’re fats made from fatty acids and glycerol. Proteins are polymers of amino acids, not sugars. So the description points to a polysaccharide, the carbohydrate composed of many sugar units. Examples include starch, glycogen, and cellulose.

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