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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. D and L describe what?






2. 2 covalent bonds formed in proteins






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






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






5. Molecules with the same atoms - but different bonds






6. Glycosidic linkage of maltose






7. Unique feature of cysteine






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






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






10. Characteristics of acidic amino acids






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






12. 2 reasons why fats have more efficient energy stores than carbs






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






14. Fxn of cholesterol in the membrane?






15. Enzyme that hydrolyzes lactose into galactose and glucose into






16. Fatty acid structure






17. Physiological pH






18. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






19. Acidic amino acids






20. Naturally occurring carbohydrates are formed from what?






21. Nonpolar - hydrophobic amino acids






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






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






24. Enzyme that hydrolyzes maltose into 2 glucose molecules?






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






26. Sugar with an aldehyde at the first carbon position






27. Name for 6 membered ring






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






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






30. Acetic acid formula?






31. Formula for urea






32. Glycosidic linkage of cellulose






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






34. Unique feature of glycine






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






36. Enzymes that hydrolyze fats






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






38. Polar amino acids






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






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






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






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






43. Unique feature of proline






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






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






46. Hydrolysis






47. 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






48. Glycosidic linkage of lactose






49. 4 causes of denaturation of proteins






50. Hydrophilic amino acids