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 an example of a structural protein?

Hemoglobin

Insulin

Collagen

DNA polymerase

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Verified step by step guidance

Understand the role of structural proteins: Structural proteins are responsible for providing support, strength, and shape to cells and tissues. They are often found in connective tissues, extracellular matrices, or cytoskeletal structures.

Review the function of each option: Hemoglobin is a transport protein that carries oxygen in the blood. Insulin is a signaling protein involved in glucose regulation. DNA polymerase is an enzyme responsible for DNA replication. Collagen, on the other hand, is a structural protein that provides tensile strength to connective tissues like skin, tendons, and bones.

Identify the characteristics of collagen: Collagen is a fibrous protein that forms a triple helix structure, making it ideal for providing structural integrity to tissues. It is the most abundant protein in mammals and plays a key role in maintaining the extracellular matrix.

Compare collagen to the other options: Unlike hemoglobin, insulin, and DNA polymerase, collagen's primary function is structural rather than transport, signaling, or enzymatic activity.

Conclude that collagen is the correct answer: Based on its role and characteristics, collagen is the example of a structural protein among the given options.