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 organic molecules 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 without being consumed in the process.

Recall the structure of enzymes: Enzymes are primarily composed of organic molecules that allow them to fold into specific three-dimensional shapes necessary for their function.

Identify the type of organic molecule: Proteins are the primary type of organic molecule that enzymes are composed of. Proteins are made up of amino acids linked together by peptide bonds, forming polypeptide chains.

Explain why proteins are suitable: The unique sequence of amino acids in proteins determines their specific folding and active site structure, which is essential for enzyme activity and substrate specificity.

Clarify why other options are incorrect: Carbohydrates, lipids, and nucleic acids are important biomolecules but do not primarily serve as enzymes. Carbohydrates provide energy, lipids form membranes, and nucleic acids store genetic information.