Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

1. Introduction to Biochemistry

Carbohydrates

Biochemistry

1. Introduction to Biochemistry

Carbohydrates

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Multiple Choice

Which statement accurately describes the properties of maltose?

Maltose is a non-reducing sugar formed from glucose and fructose.

Maltose is a polysaccharide that serves as the main storage form of carbohydrates in animals.

Maltose is a monosaccharide commonly found in fruit.

Maltose is a disaccharide composed of two glucose units linked by an \( \alpha(1 \rightarrow 4) \) glycosidic bond.

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Verified step by step guidance

Step 1: Begin by understanding the term 'maltose.' Maltose is a disaccharide, meaning it is composed of two monosaccharide units. Specifically, maltose consists of two glucose molecules.

Step 2: Examine the type of bond that links the two glucose units in maltose. The bond is an alpha glycosidic bond, denoted as \( \alpha(1 \rightarrow 4) \), which means the bond forms between the first carbon of one glucose molecule and the fourth carbon of the second glucose molecule.

Step 3: Clarify why maltose is not a non-reducing sugar. Maltose has a free anomeric carbon on one of its glucose units, which allows it to act as a reducing sugar.

Step 4: Differentiate maltose from other carbohydrate types. Maltose is not a polysaccharide (which consists of many monosaccharide units) nor a monosaccharide (a single sugar unit). It is a disaccharide, composed of exactly two glucose units.

Step 5: Conclude that the correct description of maltose is: 'Maltose is a disaccharide composed of two glucose units linked by an \( \alpha(1 \rightarrow 4) \) glycosidic bond.' This statement accurately describes its structure and properties.