Answered: An amino acid contains by mass: 34.28%…

World of Chemistry

7th Edition

ISBN:9780618562763

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter21: Biochemistry

Section: Chapter Questions

Problem 3A

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Similar questions

a. Use bond energies (see Table 3-3) to estimate H for the reaction of two molecules of glycine to form a peptide linkage. b. Would you predict S to favor the formation of peptide linkages between two molecules of glycine? c. Would you predict the formation of proteins to be a spontaneous process?
The molecular weight of a protein extracted from Salmon sperm is 10 000 amu. Analysis of the protein gave the following masses of amino acids: Ile 1.28g, Ala 0.89g, Val 3.68g, Gly 3.01g, Ser 7.29g, Pro 6.90g,Arg 86.40g. What is the molecular formula of the protein?
Lysine is an amino acid which has the following elemental composition: C, H, O, N. In one experiment, 2.175g of lysine was combusted to produce 3.94g CO2 and 1.89 H2O . In a seperate experiment, 1.873g of lysine was burned to produce 0.463g NH3. The molar mass of lysine is approximately 150g/mol. Determine the empirical and molecular formula of lysine.
Amino acids are synthesized by plants to store nitrogen. True or false.
Nucleotides appear in nucleic acids, as coenzymes in metabolism, and as chemical messengers. One example of the last is cyclic-adenosine monophosphate, CAMP, where the phosphate group forms a ring with two of the ribose carbons. Which of the following represents CAMP NH₂ HO N 0 OH OH HOW HO OH NH NH₂
Determine the molecular formula and calculate the molar mass (in g/mol) of histidine, the essential amino acid. The formula should be entered as CwHxNyOz (for example C2H2N2O2, omit coefficient if equal to 1), followed by other element if any. Molecular formula is . ord NH₂ N H molar mass is OH
You are given the structures of the amino acids alanine (Ala), methionine (Met) and threonine (Thr). to H2N CO2H H2N CO2H H2N co,H
This question has part a, part b, part c, and part d. It gives information about Appendix G for the amino acid serine.
How many amino groups are in the following molecule? ZI N H O 3 O 5 4 NH₂ O H₂N OH HO NH₂ NH OH
F2 Proteins fold into complex three-dimensional shapes. The function is dependent upon the structure of the protein and its cellular location. The final shape of the protein is based on the identity of the amino acid side chains of the protein. Some proteins form ion channels that allow that passage of ions through the cell membrane. # 3 What type of amino acids would you expect to find in a Na+ ion channel? 80 F3 E D SA 4 Q F4 R F A) nonpolar B) polar neutral C) polar acidic D) polar basic E) any of the polar side chains 9 [ F5 % 5 T C A 6 MacBook Air c F6 Y H & 7 < F7 U * 8 DII F8 1 ( 9 K F9 O ) 0 F10 P F11
Suppose a long-chain polypeptide is constructed entirely from phenylalanine monomer units. What is its empirical formula? How many amino acids does it contain if its molar mass is 17,500 g mol-1 ?
7. Bel₂(aq) + Cu₂SO4(aq) → (5

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	C₃H₉N₂O₂
	C₂H₅N₂O₃
	C₃H₇NO₃

An amino acid contains by mass: 34.28% C, 6.71% H, 13.32% N, and 45.67% O. What is its empirical formula? C3H9N2O2 C2H5N2O3 C3H7NO3