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






2. Interconversion btw two anomers






3. Molecules with the same atoms - but different bonds






4. Name for 6 membered ring






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






6. 4 causes of denaturation of proteins






7. 2 reasons why fats have more efficient energy stores than carbs






8. Glycosidic linkage of cellulose






9. Unique feature of cysteine






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






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






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






13. 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






14. Glycosidic linkage of sucrose






15. 3 carbon triol that forms backbone of triacylglycerol






16. Physiological pH






17. Glycosidic linkage of lactose






18. Histidine






19. Sugar with an aldehyde at the first carbon position






20. Characteristic of basic amino acids






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






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






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






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






25. Characteristics of polar amino acids






26. Basic amino acids






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






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






29. Polar amino acids






30. Acetic acid formula?






31. 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






32. Glyceraldehyde






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






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






35. Hydrophilic amino acids






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






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






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






39. Glycosidic linkage of maltose






40. Characteristics of acidic amino acids






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






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






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






44. 2 covalent bonds formed in proteins






45. Characteristics of hydrophobic amino acids






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






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






48. What stabilizes lipid bilayer?






49. Naturally occurring carbohydrates are formed from what?






50. Sulfur containing amino acids