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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. Diastereomers that vary in the configuration of 1 chiral center






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






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






4. 3 physiological roles of lipids






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






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






7. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






8. 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






9. Hydrophilic amino acids






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






11. Enzyme that hydrolyzes lactose into galactose and glucose into






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






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






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






15. Name for 6 membered ring






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






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






18. What stabilizes lipid bilayer?






19. Glyceraldehyde






20. Polar amino acids






21. 3 carbon triol that forms backbone of triacylglycerol






22. Unique feature of cysteine






23. Glycosidic linkage of sucrose






24. Energy storage molecule of carbohydrates for animals






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






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






27. Acidic amino acids






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






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






30. Naturally occurring carbohydrates are formed from what?






31. Characteristics of hydrophobic amino acids






32. Basic amino acids






33. Sugar with an aldehyde at the first carbon position






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






35. Physiological pH






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






37. Enzymes that hydrolyze fats






38. Characteristics of acidic amino acids






39. Energy storage molecule of carbohydrates for plants






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






41. Interconversion btw two anomers






42. Enzyme that hydrolyzes maltose into 2 glucose molecules?






43. What kind of lipids compromise the lipid bilayer?






44. Formula for urea






45. Sulfur containing amino acids






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






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






48. Fxn of cholesterol in the membrane?






49. Characteristic of basic amino acids






50. Nonpolar - hydrophobic amino acids