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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. Enzyme that hydrolyzes maltose into 2 glucose molecules?






2. Characteristics of acidic amino acids






3. Hydrophilic amino acids






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






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






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






8. Characteristics of polar amino acids






9. Energy storage molecule of carbohydrates for animals






10. 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






11. Acetic acid formula?






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






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






14. Interconversion btw two anomers






15. Sulfur containing amino acids






16. Right handed helix w/ carboxyl of one amino acid bound to the amine of another amino acid three residues away - proline never resides in this structure b/c it would place a kink in the helix






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






18. Glyceraldehyde






19. What kind of lipids compromise the lipid bilayer?






20. Characteristic of basic amino acids






21. Hydrolysis






22. Basic amino acids






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






24. Name for 5 membered ring






25. Unique feature of proline






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






27. 4 causes of denaturation of proteins






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






29. Glycosidic linkage of cellulose






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






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






32. D and L describe what?






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






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






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






36. Nonpolar - hydrophobic amino acids






37. Histidine






38. Glycosidic linkage of sucrose






39. 2 covalent bonds formed in proteins






40. Polar amino acids






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






42. What stabilizes lipid bilayer?






43. Glycosidic linkage of maltose






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






45. Unique feature of cysteine






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






47. Physiological pH






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






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






50. Naturally occurring carbohydrates are formed from what?