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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 configuration do all naturally occuring amino acids have?






2. Interconversion btw two anomers






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






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






5. D and L describe what?






6. Glycosidic linkage of lactose






7. Hydrolysis






8. 4 causes of denaturation of proteins






9. Glycosidic linkage of sucrose






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






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






12. What kind of lipids compromise the lipid bilayer?






13. Characteristics of polar amino acids






14. 3 physiological roles of lipids






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






16. Characteristics of acidic amino acids






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






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






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






20. Hydrophilic amino acids






21. Acetic acid formula?






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






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






24. 3 carbon triol that forms backbone of triacylglycerol






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






26. Enzymes that hydrolyze fats






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






28. Name for 6 membered ring






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






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






31. Naturally occurring carbohydrates are formed from what?






32. Molecules with the same atoms - but different bonds






33. 2 covalent bonds formed in proteins






34. Energy storage molecule of carbohydrates for plants






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






36. Basic amino acids






37. Nonpolar - hydrophobic amino acids






38. Energy storage molecule of carbohydrates for animals






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






40. Glyceraldehyde






41. Characteristics of hydrophobic amino acids






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






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






44. Unique feature of glycine






45. 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)






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






47. Unique feature of cysteine






48. What stabilizes lipid bilayer?






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






50. Glycosidic linkage of cellulose







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