Isoelectric - Study guides, Class notes & Summaries

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. ...

Chapter 02: Introduction to the 12-Lead ECG TRUE/FALSE 1. The point where the QRS complex and ST segment meet is called the ST-junction or J-po ANS: T The point where the QRS complex and the ST segment meet is called the ST-junction or J-point. OBJ: Identify the J-point and ST-segment deviations. 2. If the wave of depolarization (electrical impulse) moves toward the positive electrode, the waveform recorded on ECG graph paper will be upright (positive deflection). ANS: T If the wave of...

When the sympathetic nerve fibers are stimulated, the heart rate is ____________. elevated Electrode location sites should be rotated _______________ or when the pt is sweaty or has had a bath. q24h 00:10 01:49 What method is used to calculate atrial and ventricular rate for irregular rhythms? 6 second rule T or F: The qrs complex in MCL1 can be negative and still be normal. T A wave form is a movement ______________ the isoelectric line in either a posi...

Excitability correct answers the ability of non-pacemaker heart cells to respond to an electrical impulse that begins in pacemaker cells. Depolarization correct answers occurs when the normally negatively charged cells within the heart muscle develop a positive charge. Conductivity correct answers the ability to send an electrical stimulus from cell membrane to cell membrane. As a result, excitable cells depolarize in rapid succession from cell to cell until all cells have depolarized. Ex:...

Princeton Review MCAT Practice Test Questions and Answers 100% CorrectPrinceton Review MCAT Practice Test Questions and Answers 100% CorrectPrinceton Review MCAT Practice Test Questions and Answers 100% CorrectPrinceton Review MCAT Practice Test Questions and Answers 100% Correct Sickle-cell anemia (HbS) results from a substitution to valine from glutamic acid at position 6 of the β chain of hemoglobin. Which of the following best explains why the isoelectric point of HbS is higher than that o...

MLT Clinical Chemistry Final Test with Correct Answers What is the isoelectric point? - Answer-the pH of a solution where a molecule is neutral Which of the following methodologies measures absorbed light? a. liquid chromatography b. ELISA c. electrophoresis d. spectrophotometry - Answer-spectrophotometry Which of the following is not an amino acid? a. leucine b. serine c. proline d. theriosine - Answer-theriosine There are ___________ non-essential and __________ essential ...

ECG interpretation Correct Answer-(understand/know) ECG - rate calculation Correct Answer-(understand/know) P waves Correct Answer-represents time for atrial depolarization (contraction); should be upright; 0.06-0.12; disturbance indicates conduction problem within atria QRS interval Correct Answer-measured from beginning to end of QRS complex; represents time for ventricular depolarization (contraction); <0.12; disturbance indicates conduction problem in bundle branches or ventricle...

You're using anion exchange chromatography to purify a small globular protein. After passing the mixture through the column, you find that your protein did not "stick" to the resin and flowed right through. What is a plausible reason for this to have occurred? Correct Answer-The pH of the solution is close to the isoelectric point. Oxygen binding that affects the cooperatively of hemoglobin is an example of heterotrophic regulation. Correct Answer-False You have determined that a leucin...

BCH4024 EXAM 1 QUESTIONS WITH CERTIFIED ANSWERS Transfer RNA (tRNA) secondary structure: - Answer-tRNA "reads" genes information encoded in mRNA (3 nucleotide codon) copied from DNA What does tRNA transfer during protein synthesis - Answer-the appropriate amino acid to a growing polypeptide chain Transcription creates a: - Answer-complementary RNA copy (mRNA) of a sequence of DNA Translation steps: - Answer-mRNA decoded by ribosomes and tRNA is used to produce a specific amino acid ...

________ 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...