Amide amino Study guides, Class notes & Summaries

AAMC MCAT Practice Exam 1 Questions and Answers 2024 In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? A) Hydrogen bonding B) Solute concentration C) Stationary phase concentration D) Thickness of paper -Answer-A) Hydrogen bonding The answer to this question is A because the relative amount of hydrogen bonding to the stationary phas...

PeptideT or F? Peptide bonds behave as rigid planes because of partial double-bond character between the carbonyl carbon of one residue and the amide hydrogen of another residue. Correct Answer-FAlSE! B/C Hydrogen can't have a double bond, but if it stayed nitrogen it would be true. T or F? The process by which hydrophobic molecules are driven together, therefore maximizing the entropy of water, is referred to as the Hydrophobic effect. Correct Answer-TRUE! The strong electronegativity is...

MMSC407 Exam 2 Questions with All Correct Answers What is the structure of an amino acid? - Answer-Amino group (N-terminus on left), Carboxyl group (C-terminus on right), Side chain (R-group on bottom) Amide bonds - Answer-The peptide bonds that link amino acids in a protein (C-NH2) Carboxyl bonds - Answer-C-COOH Amide bonds are... - Answer-Basic Carboxyl bonds are... - Answer-Acidic What forms are all amino acids in? (except when R=H) - Answer-Chiral L-stereoisomer form How many es...

Types of Proteins - ANSWER-o Cellular / nuclear o Integral membrane, membrane-anchored, membrane-attached o Extracellular / secreted Examples of proteins - ANSWER-Collagen, Hormones, Receptors - cell surface/nuclear, Enzymes, Transporters, Channels, Cytoskeleton, Motor proteins / transport, Antibodies, Neuropeptides, Transcription factors, Chaperones, Histones, Binding proteins primary protein structure - ANSWER-Linear sequence of amino acid residues joined through peptide bonds to form ...

What are the four different protein structures? correct answer: 1. Primary 2. Secondary 3. Tertiary 4. Quaternary What is the primary structure of a protein? correct answer: a linear sequence of amino acids in polypeptide chains which is written from the amino terminus (N-terminus) to the carboxyl terminus (C-terminus) What is the secondary structure made of? correct answer: a-helix, b-sheets, and bends, turns, or loops How are alpha helices formed? correct answer: They are forme...

van der Waals correct answer: -weakest (short lives) but lots could strengthen the bond -furthest distance -form as a result of hydrophobic interactions -strength depends on the size of the atoms and the distance between them -cannot be closer than the Van der Waals contact distance or else positively charged nuclei will repel each other (energy= 0) Proteins correct answer: main action molecule of the cell (Most chemical processes of the body are carried out by proteins) -classified in...

UNIT 1 - Quizzes and Exam, UNE medical biochemistry Unit 1 Test Correctly Answered To Score A+ 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 fol...

primary structure of protein correct answer: linear sequence of amino acids in the polypeptide chain secondary structure of protein correct answer: alpha helix and beta pleated sheet alpha helix correct answer: formed when the carbonyl group of peptide bond forms a hydrogen bond with the amide nitrogen of another peptide 4 aa down the chain; proline is not commonly found among these structures beta sheets correct answer: can be parallel or antiparallel peptide chains forming rows or...

Which of the following amino acid would not be commonly found in the middle of a an α-helical domain? - correct answer 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 proto...

Test Bank for Biochemistry A Short Course 4th Edition John L. Tymoczko TEST BANK FOR BIOCHEMISTRY A SHORT COURSE JOHN L. TYMOCZKO Chapter 3 Amino Acids Matching Questions Use the following to answer questions 1–10: Choose the correct answer from the list below. Not all of the answers will be used. Answers may be used more than once. 1. a) l amino acids 2. b) water 3. c) protons 4. d) zwitterions 5. e) arginine 6. f) serine 7. g) tyrosine 8. h) cysteine 9. i)...