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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. Hydrolysis






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






3. Histidine






4. Enzyme that hydrolyzes maltose into 2 glucose molecules?






5. Physiological pH






6. What kind of lipids compromise the lipid bilayer?






7. 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)






8. Energy storage molecule of carbohydrates for plants






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






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






11. What configuration do all naturally occuring amino acids have?






12. Fxn of cholesterol in the membrane?






13. 2 reasons why fats have more efficient energy stores than carbs






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






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






16. D and L describe what?






17. Interconversion btw two anomers






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






19. Characteristic of basic amino acids






20. Unique feature of proline






21. Glycosidic linkage of sucrose






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






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






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






25. Polar amino acids






26. Fatty acid structure






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






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






29. Glycosidic linkage of lactose






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






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






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






33. Acetic acid formula?






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






35. 3 physiological roles of lipids






36. 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






37. Glycosidic linkage of cellulose






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






41. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






42. Basic amino acids






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






44. Energy storage molecule of carbohydrates for animals






45. Sulfur containing amino acids






46. Characteristics of polar amino acids






47. Enzymes that hydrolyze fats






48. Molecules with the same atoms - but different bonds






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






50. Characteristics of hydrophobic amino acids