Hydrophobic effect - Study guides, Class notes & Summaries

Henderson-Hasselbach Equation Ans- pH = pKa + log ([A-] / [HA]) Salting Out (Purification) Ans- Changes soluble protein to solid precipitate. Protein precipitates when the charges on the protein match the charges in the solution. Size-Exclusion Chromatography Ans- Separates sample based on size with smaller molecules eluting later. Ion-Exchange Chromatography Ans- Separates sample based on charge. CM attracts +, DEAE attracts -. May have repulsion effect on like charges. Salt or acid ...

Portage Learning CHEM 210 exams 1-8 and final exam Question 1 3 / 3 pts True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. True Correct! False Question 2 3 / 3 pts True or False: Biomolecules can have only two functional groups. True Correct! False Question 3 3 / 3 pts True or False: The following functional group is an alcohol. True Correct! False Question 4 3 / 3 pts True or False: In ...

AP Bio FRQs Latest Version 2024/2025 Graded A+ Based on the model, explain whether the molecules shown crossing the membrane require energy to do so. The response indicates that energy is not required for the substances to cross the membrane because the substances are being passively transported from a region of higher concentration to a region of lower concentration. Depending on the organism, the optimal pH for enolase to catalyze its reaction is between 6.5 and 8.0. Describe how ...

how are H bonds formed in beta sheets? Correct Answer-- between strands - H-bonds are lateral why do proteins fold if it would lower entropy? Correct Answer-- the hydrophobic effect - deltaH --> all of the interactions happening w/in the protein are favorable + overcome the unfavorable entropy of folding what types of interactions stabilize 3* structures? Correct Answer-- H-bonds - ion pair / salt bridges - van der Waals interactions: weak electrostatic interactions b/t induced dipo...

BIO 110 FINAL EXAM BIO 110 FINAL EXAM|VERIFIED WITH GUARANTEED ACCURATE ANSWERS The Scientific Method - Accurate AnswerObservations Ask questions Hypothesis to answer the question→ new proposition that is compatible with observations and facts already known; must result in testable predictions Make predictions based on your hypothesis Design experiment to test hypothesis Designing Controlled Experiments - Accurate AnswerManipulate one variable at a time Control group:exposed to ...

(T/F) A biochemical reaction, without a catalyst or thermodynamic coupling, takes 50 years to reach a state of equilibrium. Without more information, we cannot make a determination on either the value of the Keq constant or the positive or negative value of the ΔG of the reaction. Correct Answer-False (T/F) Due to its small size, the amino acid glycine can be found in tight turns in a protein structure. Correct Answer-True (T/F) The ΔG of a reaction is defined as the energy required to b...

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...

Henderson-Hasselbach Equation Ans- pH = pKa + log ([A-] / [HA]) Salting Out (Purification) Ans- Changes soluble protein to solid precipitate. Protein precipitates when the charges on the protein match the charges in the solution. Size-Exclusion Chromatography Ans- Separates sample based on size with smaller molecules eluting later. Ion-Exchange Chromatography Ans- Separates sample based on charge. CM attracts +, DEAE attracts -. May have repulsion effect on like charges. Salt or acid ...

RNAS C Practice Test Review 437 Questions with Verified Answers A capacitor and resisitor in parallel - CORRECT ANSWER will have same voltage across since in parallel. if in series, voltage drops would occur they can be treated together If the absolute pressure of a gas is increased from 3 atm to 4 atm at constant volume, then the absolute temperature of the gas will increase by: A. 25%. B. 33%. C. 67%. D. 75% - CORRECT ANSWER B. Assuming the validity of the Ideal-Gas law, PV = n...

BCH 361 CH 2 EXAM QUESTIONS WITH ALL CORRECT ANSWERS Under appropriate conditions, protein folding proceeds: a) amphipathically. b) due to the hydrophobic effect. c) spontaneously. d) both amphipathically and due to the hydrophobic effect. e) both spontaneously and due to the hydrophobic effect - Answer-e You have a mixture of proteins with the following pKa's. Which of the statements below is TRUE? Protein X pKa = 2 Protein Y pKa = 6 Protein Z pKa = 10 a) At a pH of 6, p...