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






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






4. Sulfur containing amino acids






5. Unique feature of cysteine






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






7. Basic amino acids






8. Glycosidic linkage of sucrose






9. Characteristics of polar amino acids






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






11. Molecules with the same atoms - but different bonds






12. Polar amino acids






13. Acidic amino acids






14. Acetic acid formula?






15. Unique feature of proline






16. 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






17. 4 causes of denaturation of proteins






18. Histidine






19. Fatty acid structure






20. Name for 5 membered ring






21. 3 physiological roles of lipids






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






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






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






25. 2 covalent bonds formed in proteins






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






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






28. Characteristic of basic amino acids






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






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






31. Name for 6 membered ring






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






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






34. Glycosidic linkage of maltose






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






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






37. 3 carbon triol that forms backbone of triacylglycerol






38. 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






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






40. Glyceraldehyde






41. Enzymes that hydrolyze fats






42. Formula for urea






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






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






45. Energy storage molecule of carbohydrates for animals






46. Unique feature of glycine






47. D and L describe what?






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






49. Hydrolysis






50. Fxn of cholesterol in the membrane?