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

Chemical Bonds

Biochemistry

1. Introduction to Biochemistry

Chemical Bonds

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Multiple Choice

Which types of chemical bonds are primarily responsible for linking together the components (proteins and rRNA) of a ribosome?

Peptide bonds and phosphodiester bonds only

Hydrogen bonds and ionic interactions

Covalent bonds and hydrogen bonds

Ionic bonds and disulfide bonds

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Verified step by step guidance

Understand the structure of a ribosome: Ribosomes are composed of proteins and ribosomal RNA (rRNA). These components are held together by various types of chemical bonds and interactions.

Recall the types of bonds involved in macromolecular assemblies: Hydrogen bonds and ionic interactions are non-covalent forces that play a significant role in stabilizing the structure of large complexes like ribosomes.

Analyze the options provided: Peptide bonds and phosphodiester bonds are covalent bonds that form the backbone of proteins and nucleic acids, respectively, but they are not responsible for linking proteins and rRNA in ribosomes. Disulfide bonds are covalent bonds that stabilize protein structures but are not typically involved in ribosome assembly.

Focus on the correct answer: Hydrogen bonds and ionic interactions are the primary forces responsible for linking proteins and rRNA in ribosomes. Hydrogen bonds occur between polar groups, while ionic interactions occur between charged groups.

Conclude the reasoning: The correct answer is 'Hydrogen bonds and ionic interactions' because these non-covalent interactions are essential for maintaining the structural integrity of ribosomes.