Open Question
There are two isomeric fat molecules whose components are glycerol, one palmitic acid, and two stearic acids (see Table 23.3). Draw the structures of both, and explain how they differ.
Ch.23 - Organic and Biological Chemistry
Chapter 23, Problem 114
What amino acids do the following abbreviations stand for? (a) Ser (b) Thr (c) Pro (d) Phe (e) Cys
Verified step by step guidance1
Step 1: Recognize that amino acids are the building blocks of proteins and each has a standard three-letter abbreviation.
Step 2: Identify the amino acid for the abbreviation 'Ser'. 'Ser' stands for Serine, which is a polar amino acid with a hydroxyl group in its side chain.
Step 3: Identify the amino acid for the abbreviation 'Thr'. 'Thr' stands for Threonine, another polar amino acid with a hydroxyl group in its side chain.
Step 4: Identify the amino acid for the abbreviation 'Pro'. 'Pro' stands for Proline, which is unique due to its cyclic structure that affects protein folding.
Step 5: Identify the amino acid for the abbreviation 'Phe'. 'Phe' stands for Phenylalanine, a nonpolar amino acid with an aromatic side chain.
Related Practice
Open Question
Jojoba wax, used in candles and cosmetics, is partially composed of the ester of stearic acid and a straight-chain C22 alcohol. Draw the structure of this ester.
Open Question
One of the constituents of the carnauba wax used in floor and furniture polish is an ester of a C32 straight-chain alcohol with a C20 straight-chain carboxylic acid. Draw the structure of this ester.
Open Question
Name and draw the structures of amino acids that fit the following descriptions. (a) Contains an isopropyl group (b) Contains an alcohol group (c) Contains a thiol group (d) Contains an aromatic ring
Open Question
Use the three-letter abbreviations to name all tripeptides containing methionine, isoleucine, and lysine.
Open Question
How many tetrapeptides containing alanine, serine, leucine, and glutamic acid can you form? Use the three-letter abbreviations to name three.