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






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






3. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






4. Glycosidic linkage of maltose






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






6. Unique feature of proline






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






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






9. 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






10. Fxn of cholesterol in the membrane?






11. Interconversion btw two anomers






12. Characteristics of acidic amino acids






13. Characteristics of hydrophobic amino acids






14. Fatty acid structure






15. 3 physiological roles of lipids






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






17. Enzyme that hydrolyzes maltose into 2 glucose molecules?






18. Energy storage molecule of carbohydrates for animals






19. Naturally occurring carbohydrates are formed from what?






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






21. Characteristic of basic amino acids






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






23. Glycosidic linkage of cellulose






24. Formula for urea






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






26. Sulfur containing amino acids






27. Acetic acid formula?






28. Glycosidic linkage of lactose






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






30. Name for 6 membered ring






31. 2 reasons why fats have more efficient energy stores than carbs






32. Energy storage molecule of carbohydrates for plants






33. What stabilizes lipid bilayer?






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






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






36. Hydrolysis






37. Molecules with the same atoms - but different bonds






38. Basic amino acids






39. Glycosidic linkage of sucrose






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






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






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






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






44. Physiological pH






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






46. Sugar with an aldehyde at the first carbon position






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






48. D and L describe what?






49. Nonpolar - hydrophobic amino acids






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