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 is a role that proteins play in living organisms?

Serving as the primary energy currency (like ATP)

Catalyzing biochemical reactions as enzymes

Forming the phospholipid bilayer of cell membranes

Storing genetic information

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Verified step by step guidance

Understand the roles of proteins in living organisms. Proteins are versatile macromolecules that perform a wide range of functions, including structural support, transport, signaling, and catalysis of biochemical reactions.

Eliminate incorrect options based on the known functions of proteins. Proteins do not serve as the primary energy currency like ATP, as ATP is a nucleotide, not a protein.

Recognize that proteins do not form the phospholipid bilayer of cell membranes. This role is carried out by lipids, specifically phospholipids, which are amphipathic molecules.

Understand that proteins do not store genetic information. Genetic information is stored in nucleic acids, such as DNA and RNA.

Identify the correct role of proteins: catalyzing biochemical reactions as enzymes. Enzymes are specialized proteins that accelerate chemical reactions by lowering the activation energy required for the reaction to proceed.