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

Beta Sheet

Biochemistry

4. Protein Structure

Beta Sheet

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Multiple Choice

Which of the following is true about interchain β-sheets?

Only have two β-strands.

Backbone H-bonding between same chain β-strands.

Backbone H-bonding between separate chain β-strands.

R-group H-bonding between separate chain β-strands.

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Verified step by step guidance

Understand the structure of β-sheets: β-sheets are formed by β-strands connected laterally by backbone hydrogen bonds, creating a sheet-like structure.

Differentiate between interchain and intrachain β-sheets: Interchain β-sheets involve β-strands from different polypeptide chains, while intrachain β-sheets involve β-strands within the same polypeptide chain.

Focus on hydrogen bonding: In interchain β-sheets, the backbone hydrogen bonds occur between β-strands from separate chains, stabilizing the structure.

Consider the role of R-groups: While R-groups can interact, the primary stabilizing factor in β-sheets is the backbone hydrogen bonding, not R-group hydrogen bonding.

Evaluate the options: The correct statement about interchain β-sheets is that they involve backbone hydrogen bonding between separate chain β-strands, distinguishing them from other types of β-sheet interactions.