Amino acid residues - Study guides, Class notes & Summaries
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Biochemistry FAU Haces Exam 1 Questions and Answers Fully Solved 100%
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________ reacts with amino groups to form shift bases - aldehyde 
8. 
What volume of 2 M HCl is required to completely titrate a 4 mmol 
monosodium aspartate (Asp.Na) solution? 
a. 2 ml 
b. 3 ml 
c. 4 ml 
d. 6 ml or more - C; 2x4 = 8 /2 = 4 ml 
A 42-amino acids peptide related to the extracellular Alzheimer amyloid deposits has the last few 
residues immersed in the membrane bilayer(must be nonpolar). Based on your knowledge about 
membrane proteins, which of the following sequences most probabl...
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USABO Latest Update with Verified Solutions
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USABO Latest Update with Verified 
 
Solutions 
 
Eukaryote An organism whose cells contain complex structures enclosed within membranes. 
The defining membrane bound structure thats sets them apart from prokaryotic cells is the 
nucleas or nuclear envelope within which the genetic material is carried. All species of large 
complex species are eukaryotes, including animals, plants and funghi. 
 
Euchromatin This shows as pale areas in the nucleas under electro magnification. It is a less 
densly...
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100 Biochemistry Exam 1 Questions with correct answers. Graded A
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100 Biochemistry Exam 1 Questions with correct answers. Graded A 
Document Content and Description Below 
100 Biochemistry Exam 1 Questions with correct answers Which of the following is found in RNA but not DNA A) Uracil B) Guanine C) Deoxyribose D) Phosphate E) Adenine >>>>Uracil Which of the fo llowing amino acids exhibits significant ultraviolet absorption above 250 nm? A) Alanine B) Tyrosine C) Methonine D) Glycine E) All of the above >>>>Tyrosine Collagen fibers hav...
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BCH 403 Final Exam Questions with Complete Solutions
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T or F: A biochemical reaction, without a catalyst or thermodynamic coupling, takes 50 years to reach a state of equilibrium. W/o more information, we cannot make a determination on either the value of the Keq constant or the positive or negative value of the DeltaG of the reaction Correct Answer-False 
 
T or F: Due to its small size, the amino acid glycine can be found in tight turns in a protein structure Correct Answer-True 
 
T or F: The Delta G of a reaction is defined as the energy requir...
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ACS BIOCHEMISTRY EXAM STUDY QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A 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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BCH 361 EXAM 2 QUESTIONS WITH ALL VERIFIED ANSWERS
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BCH 361 EXAM 2 QUESTIONS WITH ALL VERIFIED ANSWERS 
What is the purpose of the oxyanion hole in chymotrypsin? - Answer-The oxyanion hole is a structure at the active site of chymotrypsin that stabilizes the tetrahedral intermediate in the proteolysis reaction and facilitates the formation of the acyl-enzyme intermediate. 
 
What caused a "burst" of activity followed by a steady-state reaction when chymotrypsin was studied in the milliseconds subsequent to mixing the enzyme and substrate? - An...
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BCMB 406B Midterm 1 lab 1 Questions with 100% Correct Verified answers
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______ methodology allows for the study of complex 
*cellular regulation of genes 
*the role of specific amino acid residues in protein structure, catalytic function and 
ligand binding capacity 
*mechanisms involved in infectious and genetic disease - Answer Site directed 
mutagenesis
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BCH403 PRACTICE TEST QUESTIONS WITH CERTIFIED ANSWERS
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BCH403 PRACTICE TEST QUESTIONS WITH CERTIFIED ANSWERS 
E1: Which of the following statements is true regarding the hydrophobic effect? - Answer-Non - Polar molecules are driven together in order to maximize the entropy of water. 
 
E1: The peptide in question 17 is dissolved into a solution that has a pH of 6.5. Under these conditions the net charge of the peptide is - Answer-+1 
 
E1: A glycine residue is disruptive to the stability of an a-helix or a b-strand because: - Answer-It's R-group is...
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UNIT 1 - Quizzes and Exam, UNE medical biochemistry Unit 1 Test Questions and Answers Solved 100% Correct!!
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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 following will lower the affinity of hemoglobin for oxygen? 
a) decrease in protons 
b) increase in...
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BCHM 307 EXAM 1 QUESTIONS WITH ANSWERS
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BCHM 307 EXAM 1 QUESTIONS WITH ANSWERS 
Secondary structure - Answer-the local 3-dimensional structure of the peptide backbone 
- there are 4 major classes of secondary structure (alpha helix, beta sheet, turns, and random coil) 
 
The alpha helix of the secondary structure - Answer-the alpha helix is a helical region of the peptide backbone that is stabilized by hydrogen bonding 
- carbonyl residue of each amino acid residue is hydrogen bonded to the amide group 4 residues further toward the c...
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