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

Tertiary Structure of Protein

Biochemistry

4. Protein Structure

Tertiary Structure of Protein

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Multiple Choice

Which statement regarding the tertiary structure of Ribonuclease A interactions is true?

Its tertiary structure can only be stabilized by noncovalent bonds/interactions.

Each of its amino acid R groups has the capability to be involved in tertiary structure stabilization.

Its nonpolar amino acids do not stabilize tertiary structure.

Its disulfide bridges are a type of noncovalent interaction.

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Verified step by step guidance

Understand that the tertiary structure of a protein like Ribonuclease A (RNase A) is the three-dimensional shape formed by the folding of its polypeptide chain, which is stabilized by various interactions.

Recognize that the stabilization of tertiary structure involves both covalent and noncovalent interactions. Covalent interactions include disulfide bridges, while noncovalent interactions include hydrogen bonds, ionic bonds, hydrophobic interactions, and van der Waals forces.

Disulfide bridges are covalent bonds formed between the sulfur atoms of cysteine residues, which are crucial for stabilizing the tertiary structure of proteins like RNase A.

Each amino acid's R group (side chain) can participate in different types of interactions that stabilize the tertiary structure. For example, polar R groups can form hydrogen bonds, charged R groups can form ionic bonds, and nonpolar R groups can participate in hydrophobic interactions.

Evaluate the given statements: The statement 'Each of its amino acid R groups has the capability to be involved in tertiary structure stabilization' is true because all R groups can potentially contribute to the stabilization through various interactions.