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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. Histidine






2. Glycosidic linkage of cellulose






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






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






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






6. Acetic acid formula?






7. Formula for urea






8. Naturally occurring carbohydrates are formed from what?






9. Characteristics of hydrophobic amino acids






10. 3 carbon triol that forms backbone of triacylglycerol






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






12. Sugar with an aldehyde at the first carbon position






13. Fxn of cholesterol in the membrane?






14. Physiological pH






15. Nonpolar - hydrophobic amino acids






16. Molecules with the same atoms - but different bonds






17. What kind of lipids compromise the lipid bilayer?






18. D and L describe what?






19. Hydrophilic amino acids






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






21. Characteristics of acidic amino acids






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






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






24. Unique feature of cysteine






25. Unique feature of glycine






26. Energy storage molecule of carbohydrates for plants






27. Hydrolysis






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






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






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






31. Enzyme that hydrolyzes lactose into galactose and glucose into






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






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






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






35. 3 physiological roles of lipids






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






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






38. 2 reasons why fats have more efficient energy stores than carbs






39. Glycosidic linkage of lactose






40. Enzyme that hydrolyzes maltose into 2 glucose molecules?






41. Glycosidic linkage of maltose






42. Basic amino acids






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






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






45. Glyceraldehyde






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






47. Acidic amino acids






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






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






50. Unique feature of proline