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






2. Acidic amino acids






3. Sulfur containing amino acids






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






5. Polar amino acids






6. Fatty acid structure






7. What kind of lipids compromise the lipid bilayer?






8. Unique feature of proline






9. Interconversion btw two anomers






10. 4 causes of denaturation of proteins






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






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






13. 2 covalent bonds formed in proteins






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






15. 3 physiological roles of lipids






16. Basic amino acids






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






18. Characteristics of hydrophobic amino acids






19. Glycosidic linkage of sucrose






20. Energy storage molecule of carbohydrates for animals






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






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






23. Name for 6 membered ring






24. Glyceraldehyde






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






26. 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






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






28. Name for 5 membered ring






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






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






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






32. 3 carbon triol that forms backbone of triacylglycerol






33. 2 reasons why fats have more efficient energy stores than carbs






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






35. Characteristics of polar amino acids






36. 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






37. Formula for urea






38. Nonpolar - hydrophobic amino acids






39. Glycosidic linkage of lactose






40. Molecules with the same atoms - but different bonds






41. Acetic acid formula?






42. Sugar with an aldehyde at the first carbon position






43. Naturally occurring carbohydrates are formed from what?






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






45. Characteristic of basic amino acids






46. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






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






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






50. Enzyme that hydrolyzes maltose into 2 glucose molecules?