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

9. Carbohydrates

Monosaccharides

Biochemistry

9. Carbohydrates

Monosaccharides

Previous problemNext problem

Struggling with Biochemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Disaccharides are composed of ______ monosaccharides bonded together.

one

four

three

two

Previous problemNext problem

Verified step by step guidance

Understand the definition of disaccharides: Disaccharides are carbohydrates composed of two monosaccharides bonded together through a glycosidic bond.

Recall examples of disaccharides, such as sucrose (glucose + fructose), lactose (glucose + galactose), and maltose (glucose + glucose), to reinforce the concept of two monosaccharides forming a disaccharide.

Review the process of glycosidic bond formation: This occurs through a dehydration reaction where a molecule of water is removed as the monosaccharides bond together.

Compare disaccharides to other carbohydrate types: Monosaccharides are single sugar units, while polysaccharides are composed of many monosaccharides. This helps clarify why disaccharides specifically consist of two monosaccharides.

Conclude that the correct answer is 'two' based on the definition and examples provided, ensuring the concept is fully understood.