Which of the following statements about amino acids is/are incorrect?I. The formation of a dipeptide from two amino acid molecules leads to a loss of a water molecule.II. All standard amino acids can be synthesized by the organism.II. All essential amino acids are optically active.IV. Overall, naturally occurring amino acids are equally likely to be found having either an R or S configuration.V. All standard amino acids are neutral at physiological pH.II, IV, and VII, III, IV, and VII, III, and VO , I, and IIO , II, and V

Amino acids are biomolecules that make up polypeptide chains and thereby proteins. Amino acids are…

Answered: Which of the following statements about…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

List the name of two amino acids that belong to each of these type of amino acids: Nonpolar (hydrophobic) polar(uncharged) positively charged (basic) negatively charged (acidic)
Define the following terms: a. eicosanoid b. omega-6 fatty acid c. omega-3 fatty acid d. trans fatty acid e. acyl group
Which of the following statements about amino acids is/are incorrect? 1. Standard amino acids are so named because these are the only amino acids there are. 2. Essential amino acids can be synthesized by the organism. 3. All standard amino acids are optically active. 4. Overall, naturally occurring amino acids are equally likely to be found having either an R or S configuration around the alpha carbon. O 1, 3, and 4 O 1, 2, 3, and 4 1 and 2 O 1, 2, and 3
Give at least one function of each of the following:a. glycogenb. glycosaminoglycansc. glycoconjugatesd. proteoglycanse. glycoproteinsf. polysaccharides
Which of the following types of molecular interactions play a role in protein folding? Select all that apply. A.)Hydrophobic interactions B.)Van der Waals attraction C.)Hydrogen bonds D.)Covalent bonds
Name an example of each of the following classes ofcompounds:a. glycoproteinb. proteoglycanc. disaccharided. glycosaminoglycan (GAG)
Certain enzymes catalyze the covalent linkage of an acetyl group to lysine amino acids as shown below. When a particular target protein is in the un-acetylated state, its interacting partner protein will not bind. However, once acetylated, the partner protein can bind to this target protein. Which of the following can you conclude? Select all that apply CH CO NH 3. NH Lysine acetylation reaction CH, CH, +HaN -C- CO- H. HIN-C- Co- H. UAcetylation changes the secondary structure of the target protein The partner protein has acidic residues in the interacting region Acetylation changes the tertiary structure of the target protein The partner protein has basic residues in the interacting region 8-1-8-8-8–8–d=
c) Jean-François is studying a specific protein in a research laboratory. In previous experiments, he observed that this protein seems to function as a receptor protein on the surface of cells that recognizes a specific hormone involved in cell-cell communication. Jean-François prepares his final experiment, but makes a mistake in calculating how much HCl to add to one of his solutions to get the correct pH. He performs the experiment, and much to his surprise, he observes that his protein no longer seems to be recognizing the hormone anymore as he had observed in previous experiments. Propose a hypothesis that briefly explains (2-3 sentences) why the results of Jean-François’ experiment have changed. oportmost likely h beens dy the celyd must irst ir o nm cof the st omce MAnoncalest wanti patient Hewe umourcells Becnuse of falla anan intoindidual.cells. protein d) True or false: A mutation could cause the same change in Jean-François' experimental results as the change in pH described…
Your friend has discovered a protein that they suspect is glycosylated. They decide to perform a series of tests to determine the nature of the oligosaccharide. Assuming/Knowing the following: Fucose molecular weight is approximately 164 Galactose molecular weight is approximately 180 GalNAc molecular weight is approximately 221 Mannose molecular weight is approximately 180 Sialic Acid molecular weight is approximately 309 Neuraminidase cleaves before a Sialic Acid (Sialic Acid and anything after leaves the protein) Beta-galactosidase cleaves after a Galactose (Galactose and anything before remains on the protein) Peanut Agglutinin binds to GalNAc Concanavalin A binds to Mannose Hemagglutinin binds to Sialic Acid Based on preliminary results, they suspect that the oligosaccharide is 7 glycosides long and weighs a total of 1414 g/mol They carried out the following experiments: they treated the protein with either a glycosidase or a lectin, and then pelleted the protein using…
Define the following terms:a. sterol carrier proteinb. fatty acid binding proteinc. biotransformationd. de novoe. turnover
Which of the following statements is/are TRUE for globular proteins? A. sensitive to changes in pH & heat B. regular amino acid sequence C. soluble in water D. structural role
Create an oligopeptide via dehydration synthesis using the following amino acids. O. H Tryptophan (TRP) C-C-N но сн, C-C-N. но Glycine (GLY) H H HN

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