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

What is unusual about the protein sequence 'VDAATAEKVFKQY'?

It contains only hydrophobic amino acids.

It contains a disulfide bond.

It lacks any aromatic amino acids.

It is composed entirely of essential amino acids.

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Verified step by step guidance

Step 1: Begin by analyzing the given protein sequence 'VDAATAEKVFKQY'. Identify the amino acids present in the sequence by their single-letter codes.

Step 2: Recall the classification of amino acids. Aromatic amino acids include phenylalanine (F), tyrosine (Y), and tryptophan (W). Check if any of these are present in the sequence.

Step 3: Hydrophobic amino acids include alanine (A), valine (V), leucine (L), isoleucine (I), methionine (M), phenylalanine (F), and tryptophan (W). Verify if the sequence contains only hydrophobic amino acids.

Step 4: Disulfide bonds are formed between cysteine (C) residues. Check if the sequence contains cysteine, which is necessary for disulfide bond formation.

Step 5: Essential amino acids include histidine (H), isoleucine (I), leucine (L), lysine (K), methionine (M), phenylalanine (F), threonine (T), tryptophan (W), and valine (V). Determine if the sequence is composed entirely of these essential amino acids.