Treating chitin with H2O, -OH hydrolyzes its amide linkages, forming a compound called chitosan. What is the structure of chitosan? Chitosan has been used in shampoos, bers for sutures, and wound dressings.

Q: Draw beta-L-erythrofuranose

A: The compound given is beta-L-erythrofuranose.

Q: :우: b) Amino acids can react with each other to form amides (peptide bonds) and water. Amides are an…

A: The reaction taking place is given as,

Q: Describe two chemical strategies that have been employed to try to overcome the problem of…

A:

Q: EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) are made from    A. linoleic acid  B.…

A: EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) are omega-3-fatty acid which are…

Q: If H218O is used in the hydrolysis reaction catalyzed by lysozyme, which ring will contain the…

A: Lysozymes here is a glycoside hydrolase. This can harm the bacterial cell dividers by catalyzing the…

Q: Cholic acid is secreted in bile as an amide linked to the aminogroup of glycine. This cholic…

A: Cholic acid is secreted by bile juice in the liver in the form of amide that is linked with the…

Q: CH. H CH;CH,CH,NH2 b. d. a. C. CH,CH, *NH2 strychnine (a powerful poison)

A: Given amines,

Q: Draw structural formulas for the products formed by hydrolysis at pH 7.4 (the pH of blood plasma) of…

A:

Q: α-Amino acids can be prepared by treating an aldehyde with ammonia/trace acid, followed by hydrogen…

A: α-Amino acids is prepared by treating 3-methylbutanal with ammonia/trace acid, followed by hydrogen…

Q: Draw the product formed when the following amino acid is treated with each reagent: (a) CH3OH, H+;…

A: Since we answer only upto 3 sub-parts, we'll answer first three. Please resubmit the question and…

Q: Peptide 5 Peptide 4 م م م م م ملزم

A:

Q: Draw the structure of leu-enkephalin, a pentapeptide that acts as an analgesic and opiate, and has…

A: The structure of leu-enkephalin is given by,

Q: 3. What is the product if the following peptide is hydrolyzed? H₂N. OH

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Q: (a) What is the difference between the hormones progesterone and testosterone? (b) Draw the…

A:

Q: Friedrich Wohler, father of Organic Chemistry, was able to synthesize urea from? * O urine O…

A: The general formula of urea is NH2CONH2.

Q: Ancient peoples used salicin to reduce fevers. Write an equation for the acid-catalyzed hydrolysis…

A: Salicin is used as a pain reliever and for treating fever for the past several years. Structurally…

Q: entella Asiatica How is it distributed How is it metabolized/biotransformation How…

A: Answer - Centella Asiatica - Centella asiatica, commonly known as Gotu kola, kodavan, Indian…

Q: Glutathione, a powerful antioxidant that destroys harmful oxidizing agents in cells, is composed of…

A: Glutathione is a powerful antioxidant which destroys all the oxidizing agents in the body. It is one…

Q: What amino acid is formed when CH3CONHCH(CO2Et)2 is treated with the following series of reagents:…

A: The reaction of given compound with series of reagents are shown below,

Q: Which of the choices is a simple lipid? lecithin tripalmitin O sodium lauryl sulfate androsterone O…

A:

Q: 19. The omega-3 class of polyunsaturated fatty acids (PUFAS) has potent effects on cardiovascular…

A: Precursor is a compound that participates in a chemical reaction that forms another compound.…

Q: The first amino acid incorporated into a polypeptide chain during its biosynthesis in prokaryotes is…

A: The ribosome has a binding site for the growing peptide chain and a binding site for the next amino…

Q: The reagent for the preparation of alanine from acetaldehyde is? A) NaCN, NH4Cl B) HCN C) NH3 D)…

A:

Q: What amino acid is formed when CH3CONHCH(CO2Et)2 is treated with the following series of reagents:…

A:

Q: Show how L-Serine can act as buffer when you add H3O+ or OH- ions Write equations to show this.

A:

Q: The a and B anomers of a D-glucopyranose are related as: A) enantiomers. B) meso compounds. C)…

A: 1  The α  and β anomers of D‐glucopyranose are related as     -An anomer is  epimers  as the…

Q: Write reactions of isoleucine with the following reagents: a. HNO2; b. CH3COCl

A: α-amino acid, isoleucine contains an α-amino group and an α-carboxylic acid group, along with the…

Q: 7. Draw out the structures to show how a cholesterol ester forms. Use stearic acid as the carboxylic…

A: #7: During the formation of cholesterol ester, the -OH group of cholesterol and -COOH group of…

Q: Draw the structure formed between alpha-L-erythose with amino acid asparagine and label the type of…

A: Alpha L erythose react with asparagine amino acid form imine ( Schiff base)

Q: What amino acid is formed when CH3CONHCH(CO2Et)2is treated with the following series of reagents:…

A:

Q: Refer to image below: Which group becomes acidic when ethanoic acid is added in the system? H H.…

A:

Q: HOCH,CH(NH,)COOH (II) (i) Draw a dipeptide formed between I and III and label the peptide bond. (ii)…

A: Amide bond is formed when a compound with carboxylic group and a compound with amine reacts. At pH…

Q: 93. Indicate the following chemical compound OH CH3 но. H I. glycoside II. aglycone III. taken from…

A: Chemical compound

Q: 3. An amino acid has a -CH2CH3 side chain. What type of side chain could form hydrogen bonds with…

A: Hydrogen bond is the weak electrostatic force of attraction between covalently bonded hydrogen atom…

Q: Show how to convert the side-chain carboxyl group to a benzyl ester using benzyl chloride as a…

A: The conversion of side chain carboxyl group to benzyl ester by benzyl chloride is given as,

Q: Glutathione, a powerful antioxidant that destroys harmful oxidizing agents in cells, is composed of…

A: (a) The thiol groups of cysteine residues of glutathione form a disulphide bridge on oxidation.  The…

Q: Glutamic acid has three ionizable groups. The pKa of α-COOH is 2.19; α-NH 3 + , 9.67; and the…

A: Glutamic acid is a acidic amino acid having 2 COOH groups and one NH2 group. Three pKa values are…

Q: e peptide amide bonds exist either as s-cis or s-trans conformation? conformations have the large…

A: Cis configuration means two bulky or lighter groups are present on same side of double bond.

Q: Which is an essential amino acid for infants and children due to their rapid growth? Glutamine…

A: amino acid is an organic compound made of two functional groups -NH2 And -COOH  groups,  amino acid…

Q: Glycine is a diprotic acid, which can potentially undergo two dissociation reactions, one for the…

A:

Q: α-Amino acids can be prepared by treating an aldehyde with ammonia/trace acid, followed by hydrogen…

A: Introduction: Amino acids are the organic molecule which contain amino and carboxylic acid as a…

Q: Treating chitin with H2O, −OH hydrolyzes its amide linkages, forming a compound called chitosan.…

A: Chitosan comprises randomly distributed beta-linked D-glucosamine and N-acetyl-D-glucosamine.  It is…

Q: write the IUPAC names for the following aminos Hi- CH,CH, CH,CH,NH, b) N-CH,CH, c) d) CH

A: IUPAC: It stands for International Union for Pure and Applied Chemistry. There are few rules for…

Q: How is phenyl isothiocyanate useful in determining protein structure?

A: In determining protein structure, The first step is to determine the amino acid composition of the…

Q: Gramicidin S, a topical antibiotic produced by the bacterium Bacillus brevis, is a cyclic…

A: The given structure of gramicidin S is formed from five different amino acids. These five amino…

Q: The structural formula tur alutamic acid is -CH-CH-CH- C HO NH. 23. The systanic name for glutamic…

A: 24. The IUPAC name of glutamic acid is : 2 amino penta 1,5 dioic acid correct option is (b)

Q: 3. Draw the structures of: a) The two dipeptides that can be formed by combination of alanine with…

A: Amide A is N- isopropylbutanamide.

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.