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






2. Sugar with an aldehyde at the first carbon position






3. Energy storage molecule of carbohydrates for plants






4. What stabilizes lipid bilayer?






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






6. Formula for urea






7. Name for 5 membered ring






8. Characteristics of polar amino acids






9. Glycosidic linkage of cellulose






10. Characteristics of hydrophobic amino acids






11. Molecules with the same atoms - but different bonds






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






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






14. Acidic amino acids






15. Name for 6 membered ring






16. 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)






17. Enzymes that hydrolyze fats






18. Enzyme that hydrolyzes lactose into galactose and glucose into






19. 3 carbon triol that forms backbone of triacylglycerol






20. Glycosidic linkage of lactose






21. Unique feature of proline






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






23. Nonpolar - hydrophobic amino acids






24. Histidine






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






26. Fxn of cholesterol in the membrane?






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






28. D and L describe what?






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






30. 2 reasons why fats have more efficient energy stores than carbs






31. Basic amino acids






32. 4 causes of denaturation of proteins






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






34. Enzyme that hydrolyzes maltose into 2 glucose molecules?






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. What configuration do all naturally occuring amino acids have?






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






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






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






40. Hydrolysis






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






42. Sulfur containing amino acids






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






44. Fatty acid structure






45. Glycosidic linkage of maltose






46. Unique feature of cysteine






47. Interconversion btw two anomers






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






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






50. Glycosidic linkage of sucrose