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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. Physiological pH






2. Sulfur containing amino acids






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






4. Glyceraldehyde






5. 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






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






7. Name for 6 membered ring






8. 2 reasons why fats have more efficient energy stores than carbs






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






10. 2 covalent bonds formed in proteins






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






12. Characteristics of polar amino acids






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






14. Histidine






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






16. Unique feature of glycine






17. Hydrophilic amino acids






18. Basic amino acids






19. Unique feature of proline






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






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






22. Formula for urea






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






24. What kind of lipids compromise the lipid bilayer?






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






26. Enzyme that hydrolyzes lactose into galactose and glucose into






27. Energy storage molecule of carbohydrates for animals






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






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






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






31. What stabilizes lipid bilayer?






32. Energy storage molecule of carbohydrates for plants






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






34. D and L describe what?






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






36. Interconversion btw two anomers






37. Glycosidic linkage of sucrose






38. Acidic amino acids






39. Glycosidic linkage of maltose






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






41. Acetic acid formula?






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






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






44. 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






45. Glycosidic linkage of lactose






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






47. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






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






50. Unique feature of cysteine