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






2. Unique feature of proline






3. 2 reasons why fats have more efficient energy stores than carbs






4. Interconversion btw two anomers






5. Glycosidic linkage of maltose






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






7. Glycosidic linkage of sucrose






8. Fatty acid structure






9. Characteristics of hydrophobic amino acids






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






11. 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






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






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






14. 4 causes of denaturation of proteins






15. Histidine






16. Name for 6 membered ring






17. D and L describe what?






18. Energy storage molecule of carbohydrates for plants






19. What kind of lipids compromise the lipid bilayer?






20. 2 covalent bonds formed in proteins






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






22. Name for 5 membered ring






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






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






25. Enzyme that hydrolyzes maltose into 2 glucose molecules?






26. Nonpolar - hydrophobic amino acids






27. 3 physiological roles of lipids






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






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






30. Molecules with the same atoms - but different bonds






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






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






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






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






35. Unique feature of cysteine






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






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






38. Physiological pH






39. 3 carbon triol that forms backbone of triacylglycerol






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






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






42. Glycosidic linkage of lactose






43. Characteristics of polar amino acids






44. Characteristics of acidic amino acids






45. Fxn of cholesterol in the membrane?






46. Hydrolysis






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






48. Glyceraldehyde






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






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