Which of the following are examples of disaccharides?

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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 are examples of disaccharides?

Explanation:
Disaccharides are formed when two monosaccharide units join through a glycosidic bond, typically by a dehydration synthesis reaction. The set that lists lactose, maltose, and sucrose are all disaccharides, each built from two sugar units: lactose (galactose + glucose), maltose (glucose + glucose), and sucrose (glucose + fructose). The other options don’t fit this criterion: one lists individual monosaccharides, another lists polysaccharides (long chains of sugars), and the last mixes monosaccharides with a disaccharide, so it isn’t a pure example of disaccharides.

Disaccharides are formed when two monosaccharide units join through a glycosidic bond, typically by a dehydration synthesis reaction. The set that lists lactose, maltose, and sucrose are all disaccharides, each built from two sugar units: lactose (galactose + glucose), maltose (glucose + glucose), and sucrose (glucose + fructose). The other options don’t fit this criterion: one lists individual monosaccharides, another lists polysaccharides (long chains of sugars), and the last mixes monosaccharides with a disaccharide, so it isn’t a pure example of disaccharides.

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