Isoelectric point - Study guides, Class notes & Summaries

pKa (chapter 3) - measure of the tendency of a group to give up a proton (acidity); tendency decreases tenfold as pKa increases by one unit thioester bond (1) - compounds with functional group C-S-CoA-C (eg, in acetyl-CoA) zwitterion (3) - dipolar ion with both positive and negative groups but overall neutral charge; can act as either an acid or base Isoelectric point (pI) (chapter 3) - the characteristic pH at which the net electric charge is zero SDS - Sodium Dodecyl Sulfate (chap ...

Bio 268 Exam 2 Questions and Answers | Latest Update | 2024/2025 | Already Passed What is the general structure of an amino acid? It consists of a central carbon bonded to an amino group, a carboxyl group, a hydrogen atom, and an R group. What is stereoisomerism in amino acids? All life uses the L form, where the amino group is on the left side. Explain the acidic/basic properties of amino acids. Amino acids can act as both acids (releasing H+) and bases (accepting H+), with the ...

Telemetry Test Questions with 100% Correct Answers Update Assessing new onset ST elevation - Answer -presence of pain, SOB, or discomfort -check for lead placement accuracy -position patient in supine position with HOB up 30" and reassess ST -12 lead EKG and call MD Why is measuring QTc important? - Answer B/c a prolonged QTc interval increases the risk of developing a lethal dysrhythmia ST segment may reflect myocardial injury or ischemia if? - Answer it deviates from the isoele...

How many commonly occurring amino acids are there? correct answers There are 20 commonly occurring amino acids that are used for synthesis of proteins in all living systems What do amino acids contain? correct answers Amino acids contain an alpha-carboxyl group, an alpha-amino group and a distinctive R group substituted on the alpha-carbon What part of amino acids contribute to stereoisomeric forms? correct answers The alpha carbon of all amino acids except glycine is asymmetric and thus a...

RADT1001 Ch 16 | Questions and Correct Answers | Latest Update 2024/2025 Regarding the electrocardiographic tracing, all of the following are true EXCEPT: a. repolarization of atrial muscle cells is represented by the P wave. b. the QRS-complex represents depolarization of ventricular muscle cells c. the S portion of the QRS complex represents a return to the baseline (isoelectric point). d. the U wave is theorized to represent repolarization of the papillary muscles and Purkinje fibe...

MCAT - Lab Techniques (MilesDown)Native-PAGE - correct answer A polyacrylamide gel electrophoresis method for proteins using NON-DENATURING conditions. Proteins keep their native charge and structure so they are separated based on charge and size. SDS-PAGE - correct answer A polyacrylamide gel electrophoresis method for proteins using DENATURING conditions. Sodium Dodecyl Sulfate denatures the proteins and gives the proteins a uniform charge. This allows them to be separated solely on mass, t...

Cardiac Conduction Pathway System SA node> AV node> Bundle of His> Left and Right bundle branches> Purkinjie fibers Pacemakers of the heart Natural: SA Node = 60-100 beats/minute Backup: AV Node = 40-60 beats/minute Backup: Purkinje Fibers (ventricles) = 20-40 beats/minute Brainpower Read More SA Node • Intrinsic Pacemaker of the heart • Rate 60-100 beats/min • RA (Right Atrium), close to SVC (Superior Vena Cava) • Blood supply from RCA (Right Coro...

Myoglobin was an example protein when the video started talking about folding. Myoglobin is found in large amounts in _____________________. A) muscle B) brain C) fat D) skin - ANSWERSA) muscle Coenzymes such as water-soluble vitamins are needed in only small amounts because A) each vitamin molecule can be reused many times as a cofactor. B) they can be eliminated in the urine. C) only small amounts of substrates are available at any one time. D) only small amounts of enzymes are pres...

Intro to Biochem- Study Materials for Exam 1- Murphy Study Guide why are non-covalent bonds important - Ans:-10-100x weaker than covalent, energies are cumulative, include electrostatic, dispersion, H bonds What else are non-covalent bonds involved in - Ans:-define structure and function, binds hGH, amino acids involved in ligand/receptor bindings charge charge E distance - Ans:-1/r charge dipole - Ans:-1/r^2 dipole dipole - Ans:-1/r^3 charge induced dipole - Ans:-was neutral but when c...

ACS Biochemistry First Semester Exam With Complete Solutions 2024 Buffer Order and Henderson Hasselbach - answerWater, Buffer, Salt, Base pH = pKa + log(A/HA) pKa decrease as temp increase so pH decrease Ramachandran plots - answerΦ = N-R ψ = C-R optimal angle to prevent steric hinderance Protein structure of a helix, B sheet, reverse turn - answera: LEMARKHQ B: VICYFTW RT: PSDNG how many amino acids in alpha turn helix - answer3.6 Super secondary structure - answerhelix turn helix...