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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. Molecules with the same atoms - but different bonds






2. Enzyme that hydrolyzes maltose into 2 glucose molecules?






3. Energy storage molecule of carbohydrates for plants






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






5. Nonpolar - hydrophobic amino acids






6. Formula for urea






7. Physiological pH






8. Glyceraldehyde






9. Enzyme that hydrolyzes lactose into galactose and glucose into






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






11. Acetic acid formula?






12. 2 covalent bonds formed in proteins






13. Glycosidic linkage of sucrose






14. Interconversion btw two anomers






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






16. D and L describe what?






17. Characteristic of basic amino acids






18. Histidine






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






20. Name for 6 membered ring






21. Basic amino acids






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






23. What stabilizes lipid bilayer?






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






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






26. Unique feature of cysteine






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






28. Hydrophilic amino acids






29. Acidic amino acids






30. Sugar with an aldehyde at the first carbon position






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






32. 3 physiological roles of lipids






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






34. 3 carbon triol that forms backbone of triacylglycerol






35. Fxn of cholesterol in the membrane?






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






37. Polar amino acids






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






39. Fatty acid structure






40. Unique feature of proline






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






42. Glycosidic linkage of lactose






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






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






45. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






46. Glycosidic linkage of cellulose






47. Unique feature of glycine






48. 4 causes of denaturation of proteins






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






50. Characteristics of polar amino acids