1. Identify the encircled functional group(hydroxyl, carbonyl, amino, carboxyl).HOHOa)c)=6H3CНОgH3CeoHUH3CHQSpenicillinQoOpyruvateCHCHOHCholesterolEpinephrineCH3NHONCH3CH3b)fd)CH3 CH₂ CH₂ CH3CH CH₂ CHCH3OHNH₂HH-C-OHHO-C-HH-C-OHH-C-OHCH₂OH

There are four major classes of biological macromolecules called Nucleic Acids, Proteins,…

Answered: 1. Identify the encircled functional…

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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In the following scheme: HH, H₂C-C-C-Coo II HO H • NH, 1 H₂C-C-C-C000 H 2-Amino-3-ketobutyrate ↓ O H,C-C-CH₂-NH₂ Aminoacetone 0 0 H₂C-C-C-H Methylglyoxal H H₂C-C-COO OH D-Lactate O H₂C-C-C000 Pyruvate What molecule is being metabolized? Identify the reaction at each step. If it is an oxidation-reduction prove this is correct by showing oxidation state changes on the atoms in the structure.
Draw the following Lipids in: A) Condensed (detailed) Structure, B) its Block Diagram. C) Show/Indicate the type of linkages per structure (put an arrow). 5) Glycosphingolipid/Sphingoglycolipid (use sphingosine, stearic acid, and D-galactose);
Draw the following Lipids in: A) Condensed (detailed) Structure, B) its Block Diagram.C) Show/Indicate the type of linkages per structure (put an arrow). 4) Sphingolipid/Sphingophospholipid (use sphingosine, myristic acid, phosphate, and choline for amino alcohol);
g) (CH3)₂ - CH₂ -CH-COOH + CH₂-CH-COOH -H₂O NH₂ OH NH₂ 4. Write the equation for the digestion (hydrolysis) of Phe-Asp-Ala. €
Draw the following Lipids in A) Condensed (detailed) Structure, B) its Block Diagram.C) Show/Indicate the type of linkages per structure (put an arrow). 1.) Biological Wax (use arachidic acid and a 20-Carbon long chain alcohol to form the ester). Waxes uses saturated fatty acid since it is generally solid at room temperatues;
Select the choice that best describes the stereochemistry of the following amino acid, and rank the priority of the four groups surrounding the alpha carbon (in DESCENDING order: 1-highest 4-lowest) NH₂ CO₂II CH₂SH Cysteine H D and S, (1-NH2, 2-CH2SH, 3-COOH, 4-H) Land R, (1-NH2, 2-COOH, 3-CH2SH, 4-H) OL and R, (1-NH2, 2-CH2SH, 3-COOH, 4-H) D and S, (1-CH2SH, 2-COQH, 3-NH2, 4-H) H
Draw the stereoisomers of the following amino acids. Indicate pairs of enantiomers and pairs of diastereomers. leucineCH3CHCH2 CHCOO−CH3 +NH3 isoleucineCH3CH2CH CHCOO−CH3
The R group of aspartic acid is -CH2COOH. What will the structure of the amino acid be at a very high pH (above all its pKa values)? H2N- CH- -C OH H3N- -CH- -С— он H2N- -CH CH2 CH2 A) B) C) D) H3C- ÓH ÓH
Examine the structures of the following molecules. In each compound circle and identify by name each functional group. a) ethanolamine b) Glucosamine c) Threonine H₂N-C-C-OH H₂ H₂ H₂N HO OH d) Phosphoenolpyruvate с H₂N-CH OH OH OH HC - OH 1 CH3 OH T O=P-O O H₂C=C-C OH
Draw the following Lipids in: A) Condensed (detailed) Structure, B) its Block Diagram.C) Show/Indicate the type of linkages per structure (put an arrow). 3) Glycerophospholipid (use glycerol, 2 stearic acid, phosphate, and serine for its amino alcohol)
The amino acid arginine ionizes according to the following scheme: NH, NH2 NH2 H NH, C=N C=N C=N C=N-H pk = 2.17 -H pK. = 8.99 -H pK = 125 -H* H. NH NH NH NH H (CH,)a H (CH), +H* (CH)a (CH,)a H,N-C-coo- +H* +H* H-N*-C-COOH H-N-C-Co- H,N-C-co- H. нн H. H II II IV (a) Calculate the isoelectric point of arginine. You can neglect contributions from form I. Why? (b) Calculate the average charge on arginine when pH = 9.20. (Hìnt: Find the average charge for each ionizable group and sum these together.) (c) Is the value of average charge you calculated in part b reasonable, given the pl you calculated in part a? Explain your answer.
Indicate the following for each disaccharide: I) type of glycosidic linkage i.e. a(1→4) II) configuration i.e. alpha or beta 1. OH CH₂OH 0 OH I) II) III) IV) OH CH₂OH -0 OH ОН OH 2. HO CH₂OH 0 I) II) III) IV) ОН HOCH2 ОН HO ОН CH₂OH 3. CH, OH CH2 О CG OH ОН HO ОН HỎ I) II) III) III) reducing or non-reducing sugar IV) name of each monosaccharide IV) OH OH 4. HO I) II) III) IV) CH₂OH OH 0 ОН CH₂OH OH ОН OH

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1. Identify the encircled functional group (hydroxyl, carbonyl, amino, carboxyl). a) H3C. H3C S N NH b) OH S.