Choose the MOST appropriate answer.1. The bond formed between water molecule and the side chain (R group) of serine isA. peptide bondB. charge-charge interactionC. hydrophobic interactionD. hydrogen bondE. peptide bondWhich pairs of amino acids has the strongest interaction between their R groups at pH7?A. aspartate and lysineB. phenylalanine and alanineC. glutamine and arginineD. valine and isoleucine2.E. tyrosine and phenylalanine3. At pH7, which of the following amino acids has zero net charge?A. ArginineB. Aspartic acidC. Glutamic acidD. HistidineE. Lysine4. On a single-stranded DNA, the basic units are linked to one another by_A. Disulfide linkagesB. Phosphoanhydride bondsC. Phosphodiester bondsD. Hydrogen bondsE. Hydrophobic interactions

A peptide linkage is the backbone of a polypeptide chain. Hydrophobic interaction is formed between…

Answered: 1. The bond formed between water…

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

Peptide bond formation occurs between which functional groups? SELECT ALL THAT APPLY A. Amino B. Carboxyl C. Alpha-Carbon D. Nitrogen
The side chain of which of the following amino acids is most hydrophilic a. Phe b. Val c. Leu d. Cys e. Ala
What is one reason that protein folding intermediates are prone to aggregation? a. Their hydrophobic chemical groups are exposed to solvent b. They have not formed enough hydrogen bonds c. They are not globular enough d. They have not formed any disulfide bonds
3. Which best describes the contribution of tertiary (3’) structure of to the native conformation of polypeptides and proteins: a) Structure that results from intrachain interactions of amino acid side chains b) Structure that results from interchain interactions of amino acid side chains c) Structure that results from base pairing d) Structure that results from the linear sequence of amino acids from beginning to end of molecule
All 20 amino acids found in human proteins have a common structure that includes: A. An amino group (-NH2) B. A carboxyl group (-COOH) C. An R group D. A and B E. A, B, and C
1. Is there more than one way to fold a protein, given the conflicting demands of the different "R" groups and the protein existing in a watery environment? 2. Explain what an R group is. 3. Compare the backbone of a polypeptide with that of a nucleic acid. 4. Proteins perform critical functions in all of our cells. Without proteins, life wouldn’t exist. Think of some specific proteins and describe what function they perform. 5. Explain the difference between secondary and tertiary protein structures.
Which of the following is incorrect about the beta-sheet? a. The strands in anti-parallel beta-sheets are usually connected with turns b. Side chains are alternated above and below the sheet C. Parallel beta-sheets are less stable than the anti-parallel ones Od. It is stabilized by hydrophobic interactions between the side chains of nonpolar residues
4.) If a mutation in an organisms DNA causes the resulting protein to possess an alanine residue to be in the 13th position instead of a glycine, what level(s) of the resulting protein's structure would likely be affected? Why? Why would the other(s) not be affected? 14:
provide detailed explanation.
Match amino Acid R group characteristics to the biochemical bond it can form. Alanine ◆ Glycine Proline Aspartic Acid Lysine Tryptophan ◆ Methionine Threonine Asparagine Histidine A. Pi-bonding aromatic bonds B. Non-polar, contains a sulfur atom C. Non polar bonds D. Amide group bonds E. Inserts a kink (non-freely rotating bond F. Anionic group donating bonds G. Hydroxy group bonding H. Cationic group with pK = 6.0 I. No-R group - highly flexible J. Cationic group donating bond
Using the DNA sequence TCAGGA, the dipeptide formed is Select one: a. serine, glycine b. threonine, proline C. threonine, glycine d. serine, proline O O O
Which of the following is incorrect about the peptide Arg-Asp-Cys-Tyr-Gln-Arg-Glu? It has six peptide bonds b. It has a net charge of zero at pH 7 It has six charged groups at pH 7 d. None; all the other choices are correct a. C.

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