Part CDraw the structure of the predominant form of arginine at pH 7.Draw a molecule on the canvas by choosing buttons from the Tools (for bonds and charges), Atoms,and Templates toolbars, including charges where needed.NHNΑ[1]H3N+H±2D EXP.LיCONT.H0NоS0BrOH|PNHF

In general, when pH < pKa, we donate H+ due to acidic environment and when pH > pKa, we…

Answered: Part C Draw the structure of the…

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter21: Biochemistry

Section: Chapter Questions

Problem 81AP

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Hemoglobin has pI=6.8. Does hemoglobin have a net negative charge or net positive charge at pH=5.3? At pH=7.3?
22-59 What is the effect of salt bridges on the tertiary structure of proteins?
Combine these amino acids into a tripeptide. Add or remove atoms and bonds as needed. Select Draw Rings More Erase / // III 0 H Atom Decorati || H H H H H C H 1 1 XXXF О-Н N H N C H H H CH₂ H₂C H CH₂ H₂C CH₂ 4 → 0
Modify isoleucine to show its structure at pH 1 and pH 13. Modify each amino acid by adding or removing atoms or bonds and by adding charges where appropriate. pH 1 pH 13 Select Draw Rings More Erase Rings More Erase C с CH₂ CH₂ H₂C H₂N 1 CH₂ | CH | 310 H― H O H N U с || 0 H Q2 Q Select Draw / ||| ||| H₂C H₂N 1 CH₂ | CH - n O H | H 0 H N H Q2Q
Match the following amino acids with their chemical properties H -N-CIC- A -A ✓ B но с D VE ✓ F ✓ G / CH3 CH3 CH B H но -N-C-C- feed C но -N-C-C- H CH₂ D HO -N-CIC- 1 H CH₂ OH E но ||| -N-C-C- II H CH₂ I CH₂ CH₂ CH₂ T NH3 I. Acidic II. Nonpolar III. Polar uncharged IV, Basic + F O HO -N-C-C- H CH₂ NH₂ G но | || -N-C-C- I H CH₂ 1
The amino acid histidine has ionizable groups with pK₁ values of 1.8, 6.0, and 9.2, as shown. COOH H¸Ñ—CH CH₂ H 2 CH pH = COO™ H¸Ñ—CH 1.8 pk₁ CH₂ H lonizable -COOH = -COO- group CH COO™ H₂N-CH 6.0 pK₂2 CH₂ H -HisH -His N CH COO™ H₂N-CH 9.2 pk CH₂ H 2 —NH — —NH, CH A biochemist makes up 95 mL of a 0.13 M solution of histidine at a pH of 5.3. She then adds 60 mL of 0.10 M HCl. What is the pH of the resulting solution?
Question 6 of 25 > Modify lysine to show the predominant form at pH 7. Modify the amino acid by adding or removing atoms or bonds and by adding charges where appropriate. Select Draw Rings More N 0 H / || III C H-O || C ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ H H I C *一£一£一£一£ H H I N-H Erase Q2 Q
Modify the structures (if necessary) to show the predominant form of the amino acid tyrosine at each pH. Be sure to include the proper number of hydrogen atoms on heteroatoms and the correct formal charges on atoms. At pH 3.5 Select Draw Templates More 15 C H₂N - CH I CH₂ HC = || HN HC OH OH O CH CH ✔ Erase 2 Q At pH 13.0 Select Draw Templates More G ✔ ||| C H N H₂N HC HC CH | CH₂ OH OH O CH | CH Erase Q2 Q
The given dipeptide is Ala-Ser. Indicate the charge state for each structure at the given pH by adding the + or - charges to the appropriate functional groups and adding or removing hydrogen atoms where appropriate. pH = 1 pH = 7 Select Draw Rings More Erase Select Draw Rings More Erase / |||||| C O N H / |||||| C 0 N H 0 H || H H H H NCC-N-CIC X44 0-H pptpt H H H I I H CH₂ CH₂ CH CH₂ I OH OH Q2 Q G N-C-C-N-C-C-0-H Q2 Q pH = 12 Select Draw Rings More / || | C 0 N H 0 0 H || H H NCC-N- H sytyt H I CH CH₂ I OH Erase Q2 Q G G
Please help me with the following 1) sketch a phosphodiester bond 2) Make the two amino from the image below. And contrast the polarity of the side chains
Identify the following antioxidant molecule. A. alpha tocopherol hydroquinone B.dehydroascorbic acid CH3 CH3 C. alpha tocopherol semi-quinone \ / D. ascorbic acid C = C E. alpha tocopherol quinone  / \ : O – C C – O CH3  \\ // \ / C – C C – CH2–CH2–CH2–CH–CH2–CH2–CH2–CH–CH2–CH2–CH2–CH–CH3 / \ / l l l CH3 CH2– CH2…
Modify isoleucine to show its structure at pH 1 and pH 13. Modify each amino acid by adding or removing atoms or bonds and by adding charges where appropriate. pH 1 pH 13 Draw Rings More Erase Select Draw Rings More Erase C O |||||| C CH₂ | CH₂ 1 Select / |||||| H₂C H₂N 5 C - | CH H N H Q2 Q CH₂ | CH₂ | H₂C - CH H₂N — — H H O H N - H ✪ 2 Q

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Part C Draw the structure of the predominant form of arginine at pH 7. Draw a molecule on the canvas by choosing buttons from the Tools (for bonds and charges), Atoms, and Templates toolbars, including charges where needed. N HN Α [1] H3N+ H± 2D EXP. L י CONT. H 0 N о S 0 Br OH | P NH F