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 of the following best describes a key structural and functional difference between simple and complex carbohydrates?

Complex carbohydrates provide no energy, while simple carbohydrates are the main energy source for cells.

Simple carbohydrates consist of one or two sugar units and are rapidly digested, while complex carbohydrates are composed of many sugar units and are digested more slowly.

Simple carbohydrates are always insoluble in water, whereas complex carbohydrates are always soluble.

Simple carbohydrates are polymers of amino acids, while complex carbohydrates are polymers of nucleotides.

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Verified step by step guidance

Step 1: Begin by understanding the definitions of simple and complex carbohydrates. Simple carbohydrates are composed of one or two sugar units (monosaccharides or disaccharides), while complex carbohydrates are composed of many sugar units (polysaccharides).

Step 2: Analyze the digestion process. Simple carbohydrates are rapidly digested and absorbed, providing quick energy. Complex carbohydrates, due to their larger structure, are digested more slowly, leading to a more sustained energy release.

Step 3: Evaluate the solubility of carbohydrates. Both simple and complex carbohydrates can be soluble in water depending on their specific chemical structure, so this is not a distinguishing feature.

Step 4: Clarify the incorrect options. Simple carbohydrates are not polymers of amino acids, and complex carbohydrates are not polymers of nucleotides. These statements are unrelated to carbohydrate chemistry.

Step 5: Conclude that the correct answer is based on the structural and functional difference: Simple carbohydrates consist of one or two sugar units and are rapidly digested, while complex carbohydrates are composed of many sugar units and are digested more slowly.