Ch.23 - Organic and Biological Chemistry
McMurry8th EditionChemistryISBN: 9781292336145
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TOC.tableOfContents
- Ch.1 - Chemical Tools: Experimentation & Measurement170
- Ch.2 - Atoms, Molecules & Ions160
- Ch.3 - Mass Relationships in Chemical Reactions169
- Ch.4 - Reactions in Aqueous Solution199
- Ch.5 - Periodicity & Electronic Structure of Atoms102
- Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory92
- Ch.7 - Covalent Bonding and Electron-Dot Structures61
- Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure59
- Ch.9 - Thermochemistry: Chemical Energy122
- Ch.10 - Gases: Their Properties & Behavior155
- Ch.11 - Liquids & Phase Changes54
- Ch.12 - Solids and Solid-State Materials73
- Ch.13 - Solutions & Their Properties120
- Ch.14 - Chemical Kinetics98
- Ch.15 - Chemical Equilibrium125
- Ch.16 - Aqueous Equilibria: Acids & Bases110
- Ch.17 - Applications of Aqueous Equilibria147
- Ch.18 - Thermodynamics: Entropy, Free Energy & Equilibrium86
- Ch.19 - Electrochemistry154
- Ch.20 - Nuclear Chemistry96
- Ch.21 - Transition Elements and Coordination Chemistry156
- Ch.22 - The Main Group Elements187
- Ch.23 - Organic and Biological Chemistry51
Capitolo 23, Problema 118
Use the three-letter abbreviations to name all tripeptides containing methionine, isoleucine, and lysine.
Guida verificata passo dopo passo1
Step 1: Identify the three-letter abbreviations for each of the amino acids involved. Methionine is abbreviated as 'Met', isoleucine as 'Ile', and lysine as 'Lys'.
Step 2: Understand that a tripeptide is a peptide consisting of three amino acids linked by peptide bonds. The order of these amino acids matters, as it determines the identity of the tripeptide.
Step 3: List all possible permutations of the three amino acids. Since there are three different amino acids, there are 3! (3 factorial) possible permutations, which equals 6.
Step 4: Write down each permutation using the three-letter abbreviations. The possible tripeptides are: Met-Ile-Lys, Met-Lys-Ile, Ile-Met-Lys, Ile-Lys-Met, Lys-Met-Ile, and Lys-Ile-Met.
Step 5: Verify that all permutations are unique and correctly represent different sequences of the amino acids. Each sequence corresponds to a distinct tripeptide.
Concetti chiave
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Amino Acids and Their Abbreviations
Amino acids are the building blocks of proteins, and each has a specific three-letter abbreviation. Methionine (Met), Isoleucine (Ile), and Lysine (Lys) are essential amino acids that play critical roles in protein synthesis and metabolism. Understanding these abbreviations is crucial for naming peptides accurately.
Video consigliato:
Percorso guidato
01:58
Comparing Binary Acid Strength
Peptide Formation
Peptides are formed by the linkage of amino acids through peptide bonds, which occur between the carboxyl group of one amino acid and the amino group of another. In the case of tripeptides, three amino acids are combined in a specific sequence, and the order of these amino acids affects the peptide's properties and function.
Video consigliato:
Percorso guidato
02:34Enthalpy of Formation
Permutations of Amino Acids
When naming tripeptides, the order of amino acids matters, as different sequences can lead to different peptides. For methionine, isoleucine, and lysine, the total number of unique tripeptides can be calculated using permutations, considering that the same amino acids can appear in different orders, resulting in distinct tripeptide names.
Video consigliato:
Percorso guidato
01:03Binary Acids
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