Test your basic knowledge |

MCAT Organic Chemistry 2

Subjects : mcat, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Molecules with the same atoms and same bonds - but different bond geometries; can either be enantiomers or diastereomers






2. Rule for all amino acids that are nonbasic and nonacidic pertaining to pI value?






3. PH at which the amino acid has a net neutral charge






4. Fatty acid w/ no double bonds and maximum number of hydrogens






5. Sugar with an aldehyde at the first carbon position






6. (R) and (S) describe what?






7. (+) and (-) describe what?






8. What kind of lipids compromise the lipid bilayer?






9. Sulfur containing amino acids






10. Glyceraldehyde






11. Generated btw either thiols on different proteins or thiols on the same protein






12. Diastereomers that vary in the configuration of 1 chiral center






13. D and L describe what?






14. What describes the affinity of functional groups for a proton?






15. Name for 5 membered ring






16. Unique feature of proline






17. Physiological pH






18. 2 covalent bonds formed in proteins






19. Structure where H bonds occur btw residues distant from each other - or on a separate chain. backbone is extended rather than coiled






20. The amino acid sequence of a protein that is determined by peptide bond






21. Acetic acid formula?






22. Molecules with the same atoms - but different bonds






23. Interconversion btw two anomers






24. Formula for urea






25. Basic amino acids






26. Energy storage molecule of carbohydrates for plants






27. Initial folding of proteins into shapes stabilized by H bonds btw amino and carboxyl groups of backbone






28. Sugar with a carbonyl group at the 2 carbon position






29. Amino group placed on the right of a fischer projection is a?






30. 1.has partial double bond character due to resonance 2. it cannot rotate 3. amide H is someWhat acidic and can H bond






31. Macromolecule that performs a variety of bodily functions and is composed of up to 20 different amino acids






32. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






33. Enzymes that hydrolyze fats






34. Hydrophobic and hydrophilic interactions btw amino acids more distant from each other on the polypeptide chain






35. Unique feature of glycine






36. What stabilizes lipid bilayer?






37. Fatty acid w/ one or more double bonds in cis form predominately






38. Adjacent polypeptide strands running in opposite directions in Beta pleated sheet structure






39. Separation is due to charge - with negative charge moving toward positive electrode and positive charge moving toward negative electrode






40. Histidine






41. Name for 6 membered ring






42. Carbon that in linear form has a carbonyl - or in cyclic form has a hemiacetal or an acetal






43. Unique feature of cysteine






44. Molecule can act as a base and as an acid






45. Glycosidic linkage of lactose






46. Hydrophilic amino acids






47. Storage form of fatty acid that is composed of 3 esterified fatty acid to a glycerol molecule






48. 2 reasons why fats have more efficient energy stores than carbs






49. Covalent bond formed btw carboxyl group of one atom and the amino group of another amino acid in an addition - elimination mechanism - enzymes are required to carry out rxn






50. 3 physiological roles of lipids