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






2. Fatty acid structure






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






4. Physiological pH






5. Glycosidic linkage of cellulose






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






7. Hydrophilic amino acids






8. Glycosidic linkage of maltose






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






10. Unique feature of cysteine






11. 4 causes of denaturation of proteins






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






13. Fxn of cholesterol in the membrane?






14. Histidine






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






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






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






18. Name for 6 membered ring






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






20. Interconversion btw two anomers






21. Basic amino acids






22. Enzyme that hydrolyzes maltose into 2 glucose molecules?






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






24. Unique feature of proline






25. Formula for urea






26. Glyceraldehyde






27. Naturally occurring carbohydrates are formed from what?






28. 2 reasons why fats have more efficient energy stores than carbs






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






30. Characteristics of acidic amino acids






31. 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






32. D and L describe what?






33. Sugar with an aldehyde at the first carbon position






34. 1. it requires an enzyme to linearize and mutarotate 2. it is not a reducing sugar and give negative Benedict's test






35. 1. it exists in solution in equilibrium with linear form 2. mutarotation occurs readily 3. it is a reducing sugar - and reacts positively w/ Benedict's reagent






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






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






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






39. Epimers of sugars that vary in the configuration of their anomeric carbons






40. Property of fatty acids where one end is hydrophobic and the other is hydrophilic






41. Glycosidic linkage of lactose






42. Acetic acid formula?






43. What kind of lipids compromise the lipid bilayer?






44. Enzymes that hydrolyze fats






45. Enzyme that hydrolyzes lactose into galactose and glucose into






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






47. Acidic amino acids






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






49. 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)






50. Amino group placed on the left of a fischer projection is a?