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

Proteins

Biochemistry

1. Introduction to Biochemistry

Proteins

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Multiple Choice

Which type of macromolecule are enzymes primarily composed of?

Carbohydrates

Lipids

Proteins

Nucleic acids

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Verified step by step guidance

Understand the role of enzymes: Enzymes are biological catalysts that speed up chemical reactions in living organisms. They are highly specific to the reactions they catalyze.

Recall the structure of macromolecules: The four major types of macromolecules in biochemistry are carbohydrates, lipids, proteins, and nucleic acids. Each has distinct functions and structures.

Identify the composition of enzymes: Enzymes are primarily composed of proteins. Proteins are made up of amino acids linked by peptide bonds, and their three-dimensional structure is crucial for enzymatic activity.

Explain why proteins are suitable for enzymatic functions: Proteins can fold into complex shapes, forming active sites that bind specific substrates. This structural flexibility and specificity make proteins ideal for catalysis.

Clarify why other macromolecules are not enzymes: Carbohydrates, lipids, and nucleic acids have different primary roles (e.g., energy storage, structural components, genetic information) and lack the structural complexity required for enzymatic activity.