Chemistry In Focus
7th Edition
ISBN: 9781337399692
Author: Tro, Nivaldo J.
Publisher: Cengage Learning,
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Question
Chapter 15, Problem 2SC
Interpretation Introduction
Interpretation:
The weakest interaction between amino acid chains is to be determined.
Concept introduction:
Amino acids are organic compounds containing carboxyl
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Which classes of amino acids have side chains that can form ion-dipole interactions with water?
The protein collagen has an isoelectric point of pl = 6.60. This is the pH at which the number of positive charges on the protein
surface equals the number of negative charges on the protein surface.
At which of the following solution pH values will collagen be in solution and at which will it tend to aggregate?
pH = 12.89
pH = 4.07
PH = 6.50
Clear All
The protein will be in
solution.
The protein will tend to
aggregate.
Proteins are polymers in which
unbranched chains of amino acids are present.
branched chains of amino acids are present.
both unbranched and branched chains of amino acids are present.
alternating amino acid and glucose monomer units are present.
fewer than 50 amino acids are present.
Chapter 15 Solutions
Chemistry In Focus
Ch. 15 - Prob. 15.1YTCh. 15 - Prob. 1SCCh. 15 - Prob. 2SCCh. 15 - Prob. 3SCCh. 15 - Prob. 1ECh. 15 - Prob. 2ECh. 15 - Prob. 3ECh. 15 - Prob. 4ECh. 15 - Prob. 5ECh. 15 - Prob. 6E
Ch. 15 - Prob. 7ECh. 15 - Prob. 8ECh. 15 - Prob. 9ECh. 15 - Prob. 10ECh. 15 - Prob. 11ECh. 15 - Prob. 12ECh. 15 - Prob. 13ECh. 15 - Define eutrophication.Ch. 15 - Prob. 15ECh. 15 - Prob. 16ECh. 15 - Prob. 17ECh. 15 - Prob. 18ECh. 15 - Prob. 19ECh. 15 - What are the three types of interactions that...Ch. 15 - Prob. 21ECh. 15 - Prob. 22ECh. 15 - Prob. 23ECh. 15 - Prob. 24ECh. 15 - Prob. 25ECh. 15 - Prob. 26ECh. 15 - Prob. 27ECh. 15 - Prob. 28ECh. 15 - Prob. 29ECh. 15 - How do sunscreens protect your skin from the Suns...Ch. 15 - Prob. 31ECh. 15 - Prob. 32ECh. 15 - Prob. 33ECh. 15 - Prob. 34ECh. 15 - Prob. 35ECh. 15 - Prob. 36ECh. 15 - Prob. 37ECh. 15 - Prob. 38ECh. 15 - Prob. 39ECh. 15 - Prob. 40ECh. 15 - Prob. 41ECh. 15 - Prob. 42ECh. 15 - Prob. 43ECh. 15 - Prob. 44ECh. 15 - Prob. 45ECh. 15 - Prob. 46ECh. 15 - The salt bridges that hold hair protein (keratin)...Ch. 15 - Prob. 48ECh. 15 - The hydrochloric acid present in toilet bowl...Ch. 15 - Prob. 50ECh. 15 - Prob. 51ECh. 15 - Prob. 52ECh. 15 - Prob. 53ECh. 15 - Prob. 54ECh. 15 - Prob. 55ECh. 15 - Prob. 56ECh. 15 - Prob. 57ECh. 15 - Prob. 58ECh. 15 - Prob. 59ECh. 15 - Prob. 60ECh. 15 - Prob. 61ECh. 15 - Prob. 62ECh. 15 - Prob. 64ECh. 15 - Prob. 65E
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- 22-62 Distinguish between intermolecular and intramolecular hydrogen bonding between backbone groups. Where in protein structures do you find one, and where do you find the other?arrow_forward. How many unique amino acid sequences are possible for a tripeptide containing only the amino acids gly, ala, and cys, with each amino acid occurring only once in each molecule?arrow_forward22-49 Based on your knowledge of the chemical properties of amino acid side chains, suggest a substitution for leucine in the primary structure of a protein that would probably not change the character of the protein very much.arrow_forward
- For the tripeptide SerArgIle which amino acid residues a. are hydrophilic b. are hydrophobic c. possess polar neutral R groups d. participate in two amide linkagesarrow_forwardWhich functional groups are present in the amino acid structures shown below? What types of bonds can each functional group form?arrow_forwardOn the basis of polarity, what are the four types of side chains found in the standard amino acids? Draw one of the standard amino acids as an example and indicate the types of side chainsarrow_forward
- The property of water solutions to conduct electric current is possible for all of the 20 standard amino acids. True or False?arrow_forwardThe structure shown is an example of a type of macromolecule (carbohydrate, lipid, protein, or nucleic acid) that is an important biological polymer. Identify the type of macromolecule shown, the type of monomer it is made from, how you came to your conclusion and the general types of important biological functions of this type of macromolecule in the cell. 0=210 + OCH₂ NH₂ OH OHarrow_forwardWhich type of cross-link involves interactions between two nonpolar R groups?arrow_forward
- All amino acids share a common structure, a central (alpha) carbon with four groups attached. Which of these is NOT one of the four groups attached to the alpha- carbon? O an R group an ammonium group (-NH3+) O a carboxylate group (-COO) a hydronium grouparrow_forwardWhat are the intermolecular forces responsible for the folding of amino acid chains into proteins? Give specifics please.arrow_forwardWhich of the following is/are true? Methionine is an essential amino acid Valine contains two chiral carbons Glycine is an achiral amino acid The alpha-amino group and the alpha-carboxyl group of an amino acid can be neutral at a particular pH.arrow_forward
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