Isoelectric point Study guides, Class notes & Summaries

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...

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,...

ACS Biochemistry First Semester Exam Questions and Verified Solutions 2024 Buffer Order and Henderson Hasselbach - Answer -Water, Buffer, Salt, Base pH = pKa + log(A/HA) pKa decrease as temp increase so pH decrease Ramachandran plots - Answer -Φ = N-R ψ = C-R optimal angle to prevent steric hinderance Protein structure of a helix, B sheet, reverse turn - Answer -a: LEMARKHQ B: VICYFTW RT: PSDNG how many amino acids in alpha turn helix - Answer -3.6 Super secondary structure - Answe...

P wave - Answer Usually round & upright 0.06 to 0.12 seconds QRS complex - Answer normal duration 0.4 to 0.10 (one small box to 2.5 small boxes) PR interval - Answer normal duration 0.12 to 0.20 ST segment - Answer should be isoelectric the "J point" should come back to baseline 10 times method - Answer count the number of R waves in a 6 second strip and multiply by 10 Big block method - Answer Divide the number of big boxes between 2 consecutive R waves into 300 ...

ECG TEST Exam Questions with 100% Correct Answers | Verified Which of the following BEST describes universal and standard precautions? - answerStandard precaution conbine universal and body substance isolation When might you be required to perform a 'stat' ECG? - answerWhen a patient has chest pains or changes in his or her cardiac rhythm Telemedicine monitoring is generally used to evaluate which of the following? - answerArtificial pacemaker functioning Which of the following is NOT ...

What are the 6 parts of the cardiac conduction cycle? correct answer: -SA node -Internodal pathways -AV node -Bundle of His -R and L bundle branches -Purkinje fibers What is the SA node? correct answer: -Small cluster of cells located in the upper R atrium *-Pacemaker of the heart* What are internodal pathways? correct answer: Impulses sent by the SA node that travel through the atrial muscle fibers via the intra-atrial pathways Allows for simultaneous depolarization and contra...

Electrocardiogram (ECG) correct answer: Since you can't see the heart beating we use a ECG to provide a picture that replicates the actual cardiac issue. Myocardial Infraction (MI) correct answer: Heart Attack -Have abnormal rhythms. -Death of cardiac muscle due to ischemia Doe the ECG machine monitor or control the hearts rhythm? correct answer: Only monitors Straight line when machine is turned on but not connected to the patient correct answer: Isoelectric = no current ...

BIOCHEM ACS STUDY GUIDE QUESTIONS AND ANSWERS 2024. Each of the following subcellular structures contains DNA EXCEPT A. the nucleus. B. ribosomes. C. chloroplasts. D. mitochondria. - ANSWER- B In plant and animal cells, the three-dimensional integrity of the cell is maintained, in part, by an internal network of filaments called A. the cell wall. B. the Golgi apparatus. C. the cytoskeleton. D. the endoplasmic reticulum. - ANSWER- C Of the following, which are prokaryotes? A. viruses...

60-100 correct answers What is normal heart rate if the SA node is the primary pacemaker? 40-60 correct answers What is normal heart rate if the AV node is the primary pacemaker? 15-40 correct answers What is normal heart rate if the Purkinje fibers are the primary pacemaker? Atrial depolarization/contraction correct answers What does the P wave represent? PR interval correct answers Time (in seconds) from onset of atrial depolarization to the onset of ventricular depolarization (imp...

1. A 53-year-old woman is found, by arteriography, to have 50% narrowing of her left renal artery. What is the expected change in blood flow through the stenotic artery? Decrease to 1⁄16 2. When a person moves from a supine position to a standing position, which of the following compensatory changes occurs? Increased contractility 3. At which site is systolic blood pressure (blood pressure) the highest? Renal artery 4. A person's electrocardiogram (ECG) has no P wave, ...