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. Hydrolysis






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






3. Characteristic of basic amino acids






4. Sulfur containing amino acids






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






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






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






8. Acetic acid formula?






9. Physiological pH






10. Characteristics of hydrophobic amino acids






11. Glyceraldehyde






12. Molecules with the same atoms and same bonds - but different bond geometries; can either be enantiomers or diastereomers






13. Name for 5 membered ring






14. Enzymes that hydrolyze fats






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






16. Adjacent polypeptide strands running in the same direction in Beta pleated sheet structure






17. 3 physiological roles of lipids






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






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






20. Glycosidic linkage of cellulose






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






22. Molecules with the same atoms - but different bonds






23. What kind of lipids compromise the lipid bilayer?






24. Interaction btw polypeptide subunits arranged in polypeptide. can be covalent bonds or intermolecular forces - disulfide bond that does not form btw residues on the same protein affect (blank)






25. Acidic amino acids






26. Nonpolar - hydrophobic amino acids






27. Unique feature of cysteine






28. Interconversion btw two anomers






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






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






31. Histidine






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






33. Naturally occurring carbohydrates are formed from what?






34. Glycosidic linkage of lactose






35. Glycosidic linkage of sucrose






36. 2 covalent bonds formed in proteins






37. Fatty acid structure






38. Sugar with an aldehyde at the first carbon position






39. PH at which positive and negative charges balance to form a zwitterion






40. Energy storage molecule of carbohydrates for plants






41. Unique feature of proline






42. 4 causes of denaturation of proteins






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






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






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






46. Right handed helix w/ carboxyl of one amino acid bound to the amine of another amino acid three residues away - proline never resides in this structure b/c it would place a kink in the helix






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






48. 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






49. Enzyme that hydrolyzes lactose into galactose and glucose into






50. Basic amino acids