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 best describes the relationship between amino acids and proteins?

Proteins are polymers made up of amino acid monomers linked by peptide bonds.

Amino acids are large macromolecules formed by the folding of proteins.

Proteins and amino acids are unrelated molecules with different biological functions.

Amino acids are formed by the hydrolysis of nucleic acids.

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Verified step by step guidance

Step 1: Begin by understanding the basic definitions of amino acids and proteins. Amino acids are organic molecules that serve as the building blocks of proteins. Proteins are macromolecules composed of chains of amino acids linked together by peptide bonds.

Step 2: Recognize the structural relationship between amino acids and proteins. Proteins are polymers, meaning they are large molecules made up of repeating subunits. In this case, the subunits are amino acids, which are connected in a specific sequence to form a polypeptide chain.

Step 3: Understand the role of peptide bonds in protein formation. Peptide bonds are covalent bonds formed between the amino group (-NH₂) of one amino acid and the carboxyl group (-COOH) of another amino acid during a condensation reaction, releasing a molecule of water (H₂O).

Step 4: Eliminate incorrect statements based on scientific knowledge. For example, amino acids are not large macromolecules; they are small molecules. Proteins and amino acids are not unrelated; they are directly connected as amino acids form proteins. Amino acids are not formed by the hydrolysis of nucleic acids; they are synthesized through various metabolic pathways.

Step 5: Conclude that the correct description is: 'Proteins are polymers made up of amino acid monomers linked by peptide bonds.' This accurately reflects the biochemical relationship between amino acids and proteins.