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






2. 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






3. 4 causes of denaturation of proteins






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






5. 3 physiological roles of lipids






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






7. Naturally occurring carbohydrates are formed from what?






8. Glycosidic linkage of cellulose






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






10. Unique feature of cysteine






11. Physiological pH






12. Histidine






13. Fatty acid structure






14. Unique feature of glycine






15. Energy storage molecule of carbohydrates for plants






16. Acidic amino acids






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






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






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






20. 3 carbon triol that forms backbone of triacylglycerol






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






22. Polar amino acids






23. Glyceraldehyde






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






25. Energy storage molecule of carbohydrates for animals






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






27. Sulfur containing amino acids






28. Enzymes that hydrolyze fats






29. Characteristics of hydrophobic amino acids






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






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






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






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






34. Sugar with an aldehyde at the first carbon position






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






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






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






38. Glycosidic linkage of lactose






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






40. Acetic acid formula?






41. Unique feature of proline






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






43. Hydrolysis






44. Glycosidic linkage of sucrose






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






46. 2 covalent bonds formed in proteins






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






48. 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






49. Name for 6 membered ring






50. Interconversion btw two anomers