Amino acid residues - Study guides, Class notes & Summaries
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ACS BIOCHEMISTRY EXAM STUDY QUESTIONS AND ANSWERS UPDATED 2024
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Henderson-Hasselbach Equation - pH = pKa + log ([A-] / [HA]) 
 
FMOC Chemical Synthesis - Used in synthesis of a growing amino acid chain to a polystyrene bead. FMOC is used as a protecting group on the N-terminus. 
 
Salting Out (Purification) - Changes soluble protein to solid precipitate. Protein precipitates when the charges on the protein match the charges in the solution. 
 
Size-Exclusion Chromatography - Separates sample based on size with smaller molecules eluting later. 
 
Ion-Exchange...
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ACS BIOCHEMISTRY EXAM QUESTION WITH COMPLETE SOLUTIONS LATEST 2024.
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ACS BIOCHEMISTRY EXAM QUESTION WITH COMPLETE SOLUTIONS LATEST 2024. 
Henderson-Hasselbach Equation - CORRECT ANSWER - pH = pKa + log ([A-] / [HA]) 
FMOC Chemical Synthesis - CORRECT ANSWER - Used in synthesis of a growing 
amino acid chain to a polystyrene bead. FMOC is used as a protecting group on the Nterminus. 
Salting Out (Purification) - CORRECT ANSWER - Changes soluble protein to solid 
precipitate. Protein precipitates when the charges on the protein match the charges in 
the solution. 
...
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MCB: ALL EXAM QUESTIONS AND ANSWERS
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Many types of non-covalent interactions are electrostatic in nature; one notable exception is 
A) Hydrogen bond 
C) Ionic interaction 
B) Van der Waals interaction 
D) Hydrophobic interaction - Answer-D 
 
2. Maintaining correct pH is very important for living systems. Which of the following molecules is 
important for pH control in living systems? 
A) Proteins, especially those with high content of histidine residues 
B) Dihydrogen phosphate and hydrogen phosphate 
C) Bicarbonate 
D) All of t...
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Biochemistry 200 (midterm) || with 100% Verified Solutions.
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Polysaccharides (saccharides are carbohydrates) correct answers Polymer of monosaccharides 
 
Peptide bond correct answers Bond between amino acid residues to form a polypeptide chain. (Amide linkage) 
 
Phosphodiester bond correct answers Bond that connects nucleotides together to form nucleic acids 
 
Glycosidic bond correct answers Any bond that links a sugar to something else 
 
Hydrogen bond donor correct answers A hydrogen bonded to an electronegative atom 
 
Hydrogen bond acceptor correct...
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Helix Exam 2 Chapters 4-6 Questions & Answers 2024/2025
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Helix Exam 2 Chapters 4-6 Questions & Answers 2024/2025 
 
 
A peptide built from three amino acids must have - ANSWERS3 side chains 
 
A dipeptide containing valine and lysine has a net charge of __ at pH 7.0 - ANSWERS+1 
 
Which bond in a polypeptide has the least rotational freedom? - ANSWERSC-N 
 
In an alpha helix, each carbonyl group - ANSWERSis a hydrogen bond acceptor 
 
a beta sheet is a type of regular secondary structure because - ANSWERSeach residue has the same backbone conformation...
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Biochem ACS Review Test Questions and Answers Top Graded 2024
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What amino acids have nonpolar, aliphatic R groups? - Glycine, Alanine, Proline, Valine, Leucine, Isoleucine, Methionine 
 
What amino acids have polar, uncharged R groups? - Serine, Threonine, Cysteine, Asparagine, and Glutamine 
 
What amino acids have aromatic R groups? - Phenylalanine, Tyrosine, and Tryptophan 
 
What amino acids have negatively charged R groups? - Aspartate and Glutamate 
 
What amino acids have positively charged R groups? - Lysine, Arginine, and Histidine 
 
What is isoel...
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BIOLOGY MISC /Biochemistry 4th Edition by Donald Voet - Test Bank.
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Chapter 6: Proteins: Three-Dimensional Structure 
Matching 
For questions 1-10: 
A) tertiary structure 
B) keratin 
C) molecular chaperones 
D) hydropathy 
E) cis 
F) trans 
G) sterically forbidden conformation 
H) regular secondary structure 
I) collagen 
J) peptide bond 
K) ribonuclease A (RNase A) 
L) alpha 
1. Repeating values of f and y make up predictable orientations of amino 
acid with a chain, this predictable orientation forms___________. 
Ans: H 
Level of Difficulty: Easy 
Section 6.1...
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BIOMG 3300 - Unit 2 Study Questions Solved 100% Correct
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what residues are connected through the α helices hydrogen bonds? 
the hydrogen bonds occur between the H atom of the electronegative N of a peptide linkage 
and the electronegative carbonyl O atom of the fourth amino acid of the amino-terminal side of 
that peptide bond 
how many amino acids are present in a turn of the a helix? 
3.6 
describe the α helical structure. 
rigid and rodlike
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Biochemistry ACS Exam Questions and Answers 2024
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structures and properties of amino acids 
Nonpolar, Aliphatic (Hydrophobic): 
Glycine (Gly, G) 
Alanine (Ala, A) 
Valine (Val, V) 
Leucine (Leu, L) 
Isoleucine (Ile, I) 
Proline (Pro, P) 
 
Aromatic (Hydrophobic): 
Phenylalanine (Phe, F) 
Tyrosine (Tyr, Y) 
Tryptophan (Trp, W) 
 
Polar, Uncharged (Hydrophilic): 
Serine (Ser, S) 
Threonine (Thr, T) 
Cysteine (Cys, C) 
Methionine (Met, M) 
Asparagine (Asn, N) 
Glutamine (Gln, Q) 
 
Positively Charged (Basic, Hydrophilic): 
Lysine (Lys, K) 
Arginin...
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UNE Medical Biochemistry
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UNIT 1 - Quizzes and Exam, UNE medical biochemistry Unit 1 Test Correctly Answered To Score A+ 
 
Which of the following amino acid would not be commonly found in the middle of a an α-helical domain? 
Proline. 
 
It is considered a 'helix breaker' and would not be found in an alpha helix; all other residues are nonpolar hydrophobic and could reside in a transmemebrane domain. 
Changes in the physiological variables listed below can alter the affinity of hemoglobin for oxygen. Which of the fol...
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