Chiral molecules - Study guides, Class notes & Summaries

MCAT Organic Chemistry Written Exam. Electrostatic Forces - CORRECT ANSWER The attractive force between electrons and the nuclei that is responsible for all molecular bonds. Coordinate Covalent Bond - CORRECT ANSWER One nucleus donates both of the electrons in the bond. Hybridization - CORRECT ANSWER sp - 180° - linear sp2 - 120° - trigonal planar sp3 - 109.5° - tetrahedral, pyramidal, or bent dsp3 - 90°, 120° - trigonal-bipyramidal, seesaw, t-shaped, linear d2sp3 - 9...

ETS Major Field Test – Chemistry Latest Update with Complete Solutions what are isomers isomers are two compounds with the same molecular formula that are different What are the three types of isomers? 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? different bonding arrangement of atoms. atoms are bonded together in a differe...

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...

Biochemistry Test 1 Questions and Answers Graded A+ What is the role of allosteric sites in enzyme regulation? Allosteric sites are regions where molecules can bind and influence enzyme activity by changing its shape. How do competitive inhibitors affect enzyme function? Competitive inhibitors compete with substrates for binding at the active site, reducing enzyme activity. What determines the tertiary structure of a protein? The tertiary structure is determined by interactio...

Which amino acid is not chiral? a. Proline b. Glycine c. Tryptophan d. Histidine e. Isoleucine correct answers b. Glycine Do nucleic acids have a charge at the physiological pH? a. Nucleic acids are positively charged due to phosphate groups in a back bone b. Nucleic acids are not charged molecules c. Nucleic acids are negatively charged due to phosphate groups in a back bone d. Sugars in nucleic acids are positively charged, so nucleic acid molecules are negatively charged correct a...

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...

DAT Organic Chemistry Review Practice Test. Which are more stable conformers - CORRECT ANSWER staggered What are the rate laws of SN2 and E2 reactions - CORRECT ANSWER rate= k [RX][Nu:-] rate depends on concentrations of alkyl halide and nucleophile What are the rate laws of SN1 and E1 reactions - CORRECT ANSWER rate= k[RX] rate only depends on the concentration of the alkyl halide E2 elimination reactions must occur in bonds that are - CORRECT ANSWER coplanar or antiperiplan...

Our left and right hands are not identical to each other, rather, they are... - correct answer mirror images. Handedness is important in organic and biological chemistry, where it arises primarily as a consequence of the tetrahedral stereochemistry of... - correct answer sp3-hybridized carbon atoms. (5.1 Enantiomers and the Tetrahedral Carbon) - correct answer Molecules that a...

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...

Physiological roles of carbohydrates correct answers -Sources of energy -Energy storage -Structural roles -Cellular interaction -Cellular identification -Information transfer (DNA & RNA) -Signaling Monosaccharide families correct answers -Carbohydrates have empirical formulas of (CH2O)N, where n>= 3 (usually 3-6) -Two major forms classes of carbohydrates; aldoses, and ketoses Aldoses correct answers -Which have aldehyde group Ketoses correct answers -Which have ketone groups ...