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






2. Characteristics of polar amino acids






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






4. Characteristics of acidic amino acids






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






6. 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






7. Name for 6 membered ring






8. Interconversion btw two anomers






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






10. Characteristics of hydrophobic amino acids






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






12. Acidic amino acids






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






14. 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






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






16. Naturally occurring carbohydrates are formed from what?






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






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






19. Molecules with the same atoms - but different bonds






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






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






22. Enzymes that hydrolyze fats






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






24. 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)






25. Histidine






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






27. Unique feature of proline






28. Physiological pH






29. 3 physiological roles of lipids






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






31. Glycosidic linkage of maltose






32. Energy storage molecule of carbohydrates for animals






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






34. 3 carbon triol that forms backbone of triacylglycerol






35. Sugar with an aldehyde at the first carbon position






36. Glyceraldehyde






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






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






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






40. Enzyme that hydrolyzes maltose into 2 glucose molecules?






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






42. Glycosidic linkage of cellulose






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






44. Energy storage molecule of carbohydrates for plants






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






46. 4 causes of denaturation of proteins






47. What stabilizes lipid bilayer?






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






49. Molecules with the same atoms and same bonds - but different bond geometries; can either be enantiomers or diastereomers






50. Fatty acid structure