Chiral Study guides, Revision notes & Summaries

Which of the following corrctly matches the amino acid with its three-letter abbreviation? A) tryptophan: try B) isoleucine: iso C) cysteine: cys D) asparagine: asn E) valine: van correct answer: C) cysteine: cys Which hydrophobic amino aicd containes sulfur in its side chain? A) alanine B) valine C) phenlyalanine D) proline E) methionine correct answer: E) methionine Which amino acid is achiral (not chiral)? A) alanine B) valine C) glycine D) proline E) methionine c...

Chapter 1 Carbon and Its Compounds CHECKPOINT PROBLEMS Practice Problem 1.1 a) S — 1s2 2s2 2p6 3s2 3p4 b) Cl — 1s2 2s2 2p6 3s2 3p5 c) Na+ — 1s2 2s2 2p6 1-2 Copyright © 2018 Nelson Education Limited Practice Problem 1.2 a) Count valence electrons. Build a basic bonding framework and account for electrons used. Add remaining electrons and check for formal charges. The molecule has a lone pair on the nitrogen. All other electrons are bonding electrons. b) Count valence electrons. Build a bas...

Carbohydrate correct answers Polyhydroxy aldehyde, ketone, or a compound that produces such substances upon hydrolysis Chiral Centre correct answers -C atom attached to 4 different groups (tetrahedral geometry) -A molecule with a chiral centre is said to be "chiral Enantiomers correct answers -Stereoisomers that are not superimposable mirror images of each other -The configurations at all chiral centres are exactly opposite -All chemical and physical properties are the same -Differ in...

Chirality and Enantiomers • Classify molecules as achiral or chiral ⟶ Chiral is NOT superimposable on mirror images ⟶ Achiral is superimposable ▪ Achiral you can pick it up and sit it on top of each other and it is the same, chiral compounds you cannot pick up and sit on top of one another and it be the same • Identify chiral centers ⟶ Chiral centers occur at tetrahedral atoms, a chiral center is bonded to 4 DIFFERENT GROUPS ⟶ There are also stereocentersin which when a g...

what are isomers - CORRECT ANSWER isomers are two compounds with the same molecular formula that are different What are the three types of isomers? - CORRECT ANSWER 1. Structural (constitutional) isomers 2. Stereoisomers (two types) - enantiomers and diasteromers 3. Geometric isomers (also known as cis and trans isomers) what is a structural (constitutional) isomer? - CORRECT ANSWER different bonding arrangement of atoms. atoms are bonded together in a different sequence...

Chem 219 Unit 3 Exam Questions With 100% Correct Answers Stereochemistry the study of the three-dimensional structure of molecules Stereoisomers Compounds with the same structural formula and connectivity but with a different 3D arrangement of the atoms in space. Enantiomers Stereoisomers that that are non-superimposable mirror images. Enantiomers have the same connectivity but different orientations (twist) of the four atoms or groups in 3D space. The two different forms of the chira...

Chapter 1 Carbon and Its Compounds CHECKPOINT PROBLEMS Practice Problem 1.1 a) S — 1s2 2s2 2p6 3s2 3p4 b) Cl — 1s2 2s2 2p6 3s2 3p5 c) Na+ — 1s2 2s2 2p6 1-2 Copyright © 2018 Nelson Education Limited Practice Problem 1.2 a) Count valence electrons. Build a basic bonding framework and account for electrons used. Add remaining electrons and check for formal charges. The molecule has a lone pair on the nitrogen. All other electrons are bonding electrons. b) Count valence electrons. Build a bas...

Compound 1 is used to treat HIV infection based on its ability to act as: - Answer- B. an antagonist - P2 states that Compound 1 is a potent HIV protease inhibitor - HIV protease is an enzyme that is targeted to treat HIV infection - an antagonist impedes on the normal function of a system CORRECT How many stereoisomers of Compound 1 exist? - Answer- C. 32 There are 5 chiral carbons indicated in the figure 2^n rule n= # chiral carbons CORRECT Why do kidney stones form in som...

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...

Chem 219 Unit 3 Exam Questions With 100% Correct Answers Stereochemistry the study of the three-dimensional structure of molecules Stereoisomers Compounds with the same structural formula and connectivity but with a different 3D arrangement of the atoms in space. Enantiomers Stereoisomers that that are non-superimposable mirror images. Enantiomers have the same connectivity but different orientations (twist) of the four atoms or groups in 3D space. The two different forms of the chira...