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

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

Enzymes are primarily which type of macromolecule?

Nucleic acids

Carbohydrates

Lipids

Proteins

Previous problemNext problem

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

Identify the structural composition of enzymes: Enzymes are primarily composed of amino acids, which are the building blocks of proteins. Their structure allows them to fold into specific shapes necessary for their catalytic activity.

Eliminate incorrect options: Nucleic acids (e.g., DNA and RNA) are involved in genetic information storage and transfer, carbohydrates are energy sources and structural components, and lipids are involved in energy storage and membrane structure. None of these are primarily responsible for enzymatic activity.

Conclude that enzymes are proteins: Based on their amino acid composition and functional role in catalysis, enzymes are classified as proteins.