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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. Characteristics of hydrophobic amino acids






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






3. Characteristics of polar amino acids






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






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






7. Characteristics of acidic amino acids






8. Enzymes that hydrolyze fats






9. Hydrophilic amino acids






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






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






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






13. Naturally occurring carbohydrates are formed from what?






14. What stabilizes lipid bilayer?






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






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






17. Acetic acid formula?






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






19. Hydrolysis






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






21. Glyceraldehyde






22. Nonpolar - hydrophobic amino acids






23. Characteristic of basic amino acids






24. What kind of lipids compromise the lipid bilayer?






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






26. 3 physiological roles of lipids






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






28. Name for 6 membered ring






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






30. 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)






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






32. Sugar with an aldehyde at the first carbon position






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






34. Formula for urea






35. Unique feature of cysteine






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






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






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






39. Energy storage molecule of carbohydrates for plants






40. Name for 5 membered ring






41. Unique feature of glycine






42. 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






43. Basic amino acids






44. Glycosidic linkage of sucrose






45. Unique feature of proline






46. 4 causes of denaturation of proteins






47. 3 carbon triol that forms backbone of triacylglycerol






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






49. Enzyme that hydrolyzes maltose into 2 glucose molecules?






50. Energy storage molecule of carbohydrates for animals