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Chemistry Module 4 Exam Quiz

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Questions and Answers

Why does table sugar dissolve easily in water?

Sucrose contains -OH groups which can form hydrogen bonds with water. (correct)

Sucrose contains lipids that enhance solubility in water.

Sucrose contains nitrogen groups which facilitate solubility in water.

Sucrose contains sulfur groups that promote solubility in water.

What type of bond links the monosaccharides in the given structure?

γ1 → 3

δ1 → 5

β1 → 4 (correct)

α1 → 6

Is the given structure a reducing sugar?

Yes, because it has a β1 → 4 linkage. (correct)

Yes, because it has a γ1 → 3 linkage.

No, because it has only pyranoses.

No, because it lacks -OH groups.

What functional group in chitin makes it indigestible by humans?

-NH2 group Signup and view all the answers

Why can't human enzymes break down the glucose residues in chitin?

Human enzymes can only break α1 → 4 linkages. Signup and view all the answers

What property of carbohydrates allows them to interact with water?

Formation of hydrogen bonds with water molecules Signup and view all the answers

Which type of sugar typically contains an anomeric carbon?

Reducing sugar Signup and view all the answers

What makes a sugar molecule classified as a furanose or pyranose?

-OH group position Signup and view all the answers

'α' and 'β' in carbohydrate nomenclature refer to the direction of which bond?

(α) Glycosidic bond Signup and view all the answers

'Chitin' is a structural polysaccharide found in __________.

Fungi Signup and view all the answers