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Question 2 1 pts Amino acids are classified by their Rgroup (side chain) carboxylic acid group...
Label the anomeric carbon, alpha amine, alpha carboxylic acid, and side chain Label the following amino acid appropriately: Blue- Anomeric Carbon Red-alpha amine Green-alpha carboxylic acid Magenta-Side Chain НО. OH NH Oooo.
1. There are a total of amino acids are called natural amino acids that are found in proteins. These according to the older Greek letter nomenclature system for designating carboxylic acid structures. 2. True/ False The alpha carbon is the carbonyl carbon of the carboxylic acid functional group of the amino acid. 3. Which of the following are functional groups in an amino acid? (choose all that apply) a. amine b. amide c. carbonyl d. carboxylic acid e. alcohol f....
1. An amino acid is shown below. Draw a circle around the carboxylic acid group, a square around the side chain and a triangle around the amino group. Finally, put an asterisk next to the C-carbon. HC=0 -C-C-H HNH3+ 2. Consider the molecule below (C&H BINO). After downloading Imol and the molecule files to your computer, measure the values of the indicated bond and torsional angles. CCN HOC = HO 1 OCCC - OCCBr =
The carboxylic acid group (COOH) in the side chain of Aspartic acid (shown below), one of the 20 naturally occurring amino acids, has a pKa of 4.1. Calculate the percentage of conjugate base (COO- ) for this carboxylic acid group in the side chain of Aspartate at the following pH values: 2.1 , 4.1 and 5.1.
60) Lipids are composed of: c) fatty acids and glycerol amino acids and glycerol nucleic acids and glycerol fatty acids and water fatty acids and sugar e) 61) The bond between two amino acids is a: a) hydrogen bond b) covalent bond c) peptide bond d) b and c e) none of the above 62) Hemoglobin has which tertiary structure: a) fibrous b) globular c) four subunits--two alpha chains, two beta chains d) alpha helix e) none of the above...
In the linear polymers of amino acids, the 42 group of one amino acid is linked to the 43 group of another amino acid. 44 is the order in which the amino acids are covalently linked together through the peptide bond. The secondary (2) structure of proteins is the 45_ of the polypeptide chain backbone. C. Short Answer (12%)
Multiple choice] 1. The R-group CH₂C₆H₅ belongs to: a. Arginine b. Phenylalamine c. Cysteine d. Aspartic acid 2. Choose the INCORRECT statement: a. Peptides are amino acids joined by a peptide bond. b. A protein is hydrolyzed to a mixture of ά-amino acids c. A tripeptide has three peptide bonds. d. An ά-amino acid is a carboxylic acid with an amine group on the ά carbon.
Considering the side chain of each of the amino acids at pH 7.4, is that amino acid classified at neutral, basic, or acidic? Neutral Basic Acidic Answer Bank Leu histidine Thr H3C-c-coo TOOC-CH2-c-COO NH3 NH3 glutamate H2N-C-CH2-C-Coo NH3
help with this question Consider a 0.211 L solution of the amino acid aspartic acid (0.631 M), which has an alpha carboxylic acid group (pka = 2.10), an alpha amine group (pka = 9.82), and a carboxylic acid group in the side chain (pka = 3.86). If the titration is started at a very low pH, how many liters of 2.25 M NaOH would you need to add to reach the isoelectric point of the amino acid? Give your answer...
Question 1 (0.5 points) Saved Proteins are formed by joining together. carboxylic acids fatty acids amino acids none of the above Question 2 (0.5 points) Which two functional groups does an amino acid contain? amine and carboxylic acid carboxylic acid and amide amide and heterocyclic ring heterocyclic ring and amine Question 3 (0.5 points) Do amino acids commonly exist in nature as neutral molecules with all uncharged atoms? Yes No Question 1 (0.5 points) What is a protein? A polymer...