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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. Sugar with an aldehyde at the first carbon position






2. Name for 6 membered ring






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






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






5. What stabilizes lipid bilayer?






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






7. Sulfur containing amino acids






8. Hydrophilic amino acids






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






10. Glyceraldehyde






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






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






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






14. Glycosidic linkage of maltose






15. Unique feature of cysteine






16. Histidine






17. Enzyme that hydrolyzes lactose into galactose and glucose into






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






19. Nonpolar - hydrophobic amino acids






20. Enzyme that hydrolyzes maltose into 2 glucose molecules?






21. Characteristics of acidic amino acids






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






23. Macromolecule that performs a variety of bodily functions and is composed of up to 20 different amino acids






24. Acetic acid formula?






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






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






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






28. Energy storage molecule of carbohydrates for plants






29. 2 covalent bonds formed in proteins






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






31. 3 physiological roles of lipids






32. Polar amino acids






33. Fatty acid structure






34. 3 carbon triol that forms backbone of triacylglycerol






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






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






37. Characteristics of polar amino acids






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






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






40. Enzymes that hydrolyze fats






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






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. Energy storage molecule of carbohydrates for animals






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






45. 2 reasons why fats have more efficient energy stores than carbs






46. Naturally occurring carbohydrates are formed from what?






47. Name for 5 membered ring






48. Interconversion btw two anomers






49. Characteristics of hydrophobic amino acids






50. What configuration do all naturally occuring amino acids have?