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






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






3. Molecules with the same atoms - but different bonds






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






5. 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






6. Unique feature of proline






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






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






9. Polar amino acids






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






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






12. Glycosidic linkage of cellulose






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






14. Unique feature of glycine






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






16. Glycosidic linkage of sucrose






17. Hydrophilic amino acids






18. Interconversion btw two anomers






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






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






21. 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






22. Physiological pH






23. Name for 6 membered ring






24. Acetic acid formula?






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






26. What stabilizes lipid bilayer?






27. Unique feature of cysteine






28. 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)






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






30. 2 covalent bonds formed in proteins






31. Hydrolysis






32. 4 causes of denaturation of proteins






33. Characteristics of hydrophobic amino acids






34. Naturally occurring carbohydrates are formed from what?






35. Sugar with an aldehyde at the first carbon position






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






37. 3 carbon triol that forms backbone of triacylglycerol






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






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






40. Fxn of cholesterol in the membrane?






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






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






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






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






45. Glyceraldehyde






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






47. Characteristics of polar amino acids






48. Glycosidic linkage of maltose






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






50. Characteristic of basic amino acids