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






2. Glycosidic linkage of sucrose






3. 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






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






5. 3 physiological roles of lipids






6. Name for 6 membered ring






7. Glyceraldehyde






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






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






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






11. Energy storage molecule of carbohydrates for plants






12. Hydrolysis






13. Name for 5 membered ring






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






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






16. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






17. Unique feature of cysteine






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






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






20. Unique feature of proline






21. Energy storage molecule of carbohydrates for animals






22. 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






23. Glycosidic linkage of lactose






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






25. Characteristics of acidic amino acids






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






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






28. Characteristics of hydrophobic amino acids






29. Enzymes that hydrolyze fats






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






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






32. Molecules with the same atoms - but different bonds






33. Characteristics of polar amino acids






34. 3 carbon triol that forms backbone of triacylglycerol






35. Fatty acid structure






36. Glycosidic linkage of maltose






37. Histidine






38. Fxn of cholesterol in the membrane?






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






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






41. What kind of lipids compromise the lipid bilayer?






42. 4 causes of denaturation of proteins






43. D and L describe what?






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






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






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






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






48. Interconversion btw two anomers






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






50. Nonpolar - hydrophobic amino acids