Option B, D and C are correct.
When acidic conditions are induced, coo groups get protonated and become COOH whereas amino group gets positively charged and become NH3+.
Hope it helps you
In question 4. brown sugar was identified as acidic, and the acidic nature of brown sugar...
I posted this question earlier and this was the wrong
answer
acts like any other polyprotic aliu. Il we will ale s punypruul uuluu determine the pka for each of the potentially acidic sites in that amino acid. Consider the amino acid, glycine shown below in both its neutral form on the left and its fully protonated form on the right: H2N-CH- OH HAN-CH- OH Neutral form of glycine Fully protonated form of glycine (form present at low pH) Here...
Question 1 (0.5 points) Saved Proteins are formed by joining together. carboxylic acids fatty acids amino acids none of the above Question 2 (0.5 points) Which two functional groups does an amino acid contain? amine and carboxylic acid carboxylic acid and amide amide and heterocyclic ring heterocyclic ring and amine Question 3 (0.5 points) Do amino acids commonly exist in nature as neutral molecules with all uncharged atoms? Yes No Question 1 (0.5 points) What is a protein? A polymer...
Protecting groups are essential in peptide synthesis to prevent the polymerization of amino acids. The protecting group 2-(4-biphenyl)isopropoxycarbonyl (Bpoc), identified below, is designed to protect amine groups and is cleavable under mildly acidic conditions (0.2 0.5% trifluoroacetic acid) oNOH Bpoc-glycine он 2-(4-biphenyl)isopropoxycarbonyl (Bpoc) group Based on your knowledge of related protecting groups, propose a mechanism for the deprotection of the Bpoc group from Bpoc-glycine (shown above) under acidic conditions, and explain why the Bpoc group is cleavable under such mild...
What is the importance of the 2′ hydroxyl group in the ribose sugar of an RNA molecule? Check all that apply. View Available Hint(s) Hint 1. Properties of an hydroxyl groupopened hint A hydroxyl group has the formula OH. Water, alcohols, carboxylic acids, and other hydroxy-containing compounds can be deprotonated owing to the high electronegativity of oxygen, resulting in a stable conjugate base. Hydroxy-containing compounds are also able to form hydrogen bonds, which lead to higher boiling and melting points...
Which of the following statements is NOT consistent with the four principles of evolution? a. Genetic mutations are random and are not "designed" to guide evolution in a given direction. b. The development of new structures or features of an organism can occur spontaneously and do not have to arise from existing features - this helps account for the diversity among all organisms on earth. c. Evolution occurs continuously and is still happening. d. A genetic variation that allows an...
s appear/look differently. This can often be The maie and female of the same specie to the presence and/or position of functional groups 7. d. none of the above c. sexual dimorphism with their descriptions: 8-12. Match the following functional groups as their functional group 8. Alcohols have 9. Acetic acid (organic acids) have 10. Proteins/amino acids have as their functional grou as one of their functional groups 11. Thiols have 12. An organic compound with-CO at the end of...
Understand alpha helices and beta pleated sheets Question How is it possible for the a-helix to have amino acids with bulky side chains while the B-pleated sheets cannot? Select the correct answer below: O The R groups in the a-helix stabilize the structure, while they interfere with the hydrogen bonds in a B-pleated sheet. The R groups are contained inside the a-helix structure, while they interfere with the hydrogen bonds in a B- pleated sheet. O The R groups lie...
single letter abbreviation of all amino acids that
correspond
4. Amino acids. The side chains of amino acids have a wide spectrum of chemical and physical properties. In each sp. provided below, write the single-letter abbreviations of all amino acids that match the description positively charged side chains at pH 7.4 negatively charged side chains at pH 7.4 negatively charged side chains at pH 12 achiral contains two chiral carbons side chain restricts the rotation of main chain contains carboxamide...
commond in PRACTICE SHEET NH2 04/04/2018 OH a. Which H is the most acidic ? (circle it) b. What product forms when the compound is treated with HCI ? (Draw it above) c. How many sp3 hybridized carbons does this molecule have? d. How many H's are on the attached to the N? 10 a. Indicate the strongest IMF available to each of the compounds below. Oligo H A B b. Which compound would you expect to have a greater...
1. Given the following peptide, which of the following
statements is true?
Question options:
a) The N-terminal residue is leucine.
b)This peptide contains 4 amino acid residues.
c) The peptide contains a total of 6 ionizable groups.
d) The net charge of this peptide at pH 7 is +1 Locate any
peptide bond along the backbone of the given peptide.
e) The bond between the C (of the C=O) and the N (of the N-H) of
a peptide bond has...