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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. Hydrophilic amino acids






2. Energy storage molecule of carbohydrates for plants






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






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






5. Characteristics of polar amino acids






6. Energy storage molecule of carbohydrates for animals






7. 2 reasons why fats have more efficient energy stores than carbs






8. Characteristic of basic amino acids






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






10. Sulfur containing amino acids






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






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






13. 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)






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






15. Formula for urea






16. Glycosidic linkage of lactose






17. Fatty acid structure






18. Characteristics of acidic amino acids






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






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






21. Nonpolar - hydrophobic amino acids






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






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






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






25. What kind of lipids compromise the lipid bilayer?






26. 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






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






28. Histidine






29. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






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






32. What stabilizes lipid bilayer?






33. Name for 6 membered ring






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






35. Naturally occurring carbohydrates are formed from what?






36. Unique feature of glycine






37. 4 causes of denaturation of proteins






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






39. Polar amino acids






40. 3 physiological roles of lipids






41. Sugar with an aldehyde at the first carbon position






42. Acidic amino acids






43. Unique feature of cysteine






44. Molecules with the same atoms - but different bonds






45. Name for 5 membered ring






46. 2 covalent bonds formed in proteins






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






48. Characteristics of hydrophobic amino acids






49. Acetic acid formula?






50. D and L describe what?