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

4. Protein Structure

Denaturation

Biochemistry

4. Protein Structure

Denaturation

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Multiple Choice

Which of the following can happen to a protein if it is denatured?

Increase in its catalytic activity

Loss of its three-dimensional structure

Formation of new peptide bonds

Conversion into a nucleic acid

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Verified step by step guidance

Understand the concept of protein denaturation: Denaturation refers to the process where a protein loses its native three-dimensional structure due to external stressors like heat, pH changes, or chemical agents. This loss of structure typically disrupts the protein's function.

Analyze the options provided: Evaluate each option in the context of denaturation. For example, denaturation does not lead to an increase in catalytic activity; instead, it often results in the loss of enzymatic function due to structural changes.

Focus on the structural impact: Denaturation primarily affects the secondary, tertiary, and quaternary structures of a protein, while the primary structure (sequence of amino acids) remains intact. This means no new peptide bonds are formed during denaturation.

Clarify the impossibility of conversion into a nucleic acid: Proteins and nucleic acids are distinct macromolecules with different building blocks (amino acids vs. nucleotides). Denaturation does not involve a chemical transformation of a protein into a nucleic acid.

Conclude with the correct answer: The most accurate description of what happens during denaturation is the loss of the protein's three-dimensional structure, which is essential for its function.