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






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






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






4. Interaction btw polypeptide subunits arranged in polypeptide. can be covalent bonds or intermolecular forces - disulfide bond that does not form btw residues on the same protein affect (blank)






5. Glycosidic linkage of lactose






6. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






7. What stabilizes lipid bilayer?






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






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






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






11. Formula for urea






12. Characteristics of acidic amino acids






13. Acidic amino acids






14. Glyceraldehyde






15. 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






16. What kind of lipids compromise the lipid bilayer?






17. Glycosidic linkage of maltose






18. 2 covalent bonds formed in proteins






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






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






21. Basic amino acids






22. Acetic acid formula?






23. 4 causes of denaturation of proteins






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






25. Characteristics of polar amino acids






26. Physiological pH






27. Sulfur containing amino acids






28. Glycosidic linkage of sucrose






29. Hydrolysis






30. Histidine






31. Fatty acid structure






32. Characteristics of hydrophobic amino acids






33. Nonpolar - hydrophobic amino acids






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






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






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






37. D and L describe what?






38. Enzyme that hydrolyzes maltose into 2 glucose molecules?






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






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






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






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






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






44. Unique feature of proline






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






46. Enzymes that hydrolyze fats






47. 2 reasons why fats have more efficient energy stores than carbs






48. Energy storage molecule of carbohydrates for animals






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






50. 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