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Questions and Answers
A molecule with the chemical formula C6H12O6 is probably a _____.
monosaccharide
Humans can digest starch but not cellulose because humans have enzymes that can hydrolyze the alpha-glycosidic linkages of starch but not the beta-glycosidic linkages of cellulose.
True
How is lactose classified?
disaccharide
Which of the following could amylase break down?
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Which of the following categories includes all others in the list?
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Which of these best reflects the following relationship: monosaccharide versus polysaccharide?
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Study Notes
Carbohydrates Overview
- C6H12O6 represents a monosaccharide, a fundamental sugar molecule.
- Starch is digestible by humans due to enzymes that break alpha-glycosidic linkages, unlike cellulose, which contains beta-glycosidic linkages.
- Lactose is a disaccharide made of glucose and galactose joined by a glycosidic linkage.
Enzymes and Digestion
- Amylase is an enzyme capable of hydrolyzing glycosidic linkages in starch, specifically targeting alpha forms of glucose monomers.
- It cannot break down cellulose due to its different linkage type.
Classification of Carbohydrates
- The term "carbohydrate" encompasses all types of sugars including monosaccharides, disaccharides, and polysaccharides.
- Examples include glucose (a monosaccharide) and glycogen (a polysaccharide), illustrating the relationship between simple and complex carbohydrates.
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Description
Test your knowledge on key concepts from Chapter 5 of biology, including carbohydrate structures and digestion. This quiz features flashcards on molecules like glucose and lactose, along with their digestibility. Perfect for reinforcing your understanding of molecular biology.