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 of the following best describes the primary chemical composition of enzymes?

Lipids composed of fatty acids and glycerol

Nucleic acids composed of nucleotides

Polysaccharides composed of glucose units

Proteins composed of amino acids

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Verified step by step guidance

Understand the definition of enzymes: Enzymes are biological catalysts that speed up chemical reactions in living organisms without being consumed in the process.

Recall the primary chemical composition of enzymes: Enzymes are primarily composed of proteins, which are made up of amino acids linked together by peptide bonds.

Eliminate incorrect options: Lipids, nucleic acids, and polysaccharides are not the primary chemical composition of enzymes. Lipids are composed of fatty acids and glycerol, nucleic acids are composed of nucleotides, and polysaccharides are composed of glucose units.

Focus on the correct option: Proteins are the correct answer because enzymes are specialized proteins that perform catalytic functions in biochemical reactions.

Conclude with the importance of amino acids: Amino acids are the building blocks of proteins, and the specific sequence and structure of amino acids determine the function and specificity of the enzyme.