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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. What stabilizes lipid bilayer?






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






3. 3 carbon triol that forms backbone of triacylglycerol






4. 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






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






6. Acidic amino acids






7. Glycosidic linkage of sucrose






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






9. 3 physiological roles of lipids






10. Hydrolysis






11. Hydrophilic amino acids






12. Glycosidic linkage of lactose






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






14. Enzymes that hydrolyze fats






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






16. Naturally occurring carbohydrates are formed from what?






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






18. Characteristics of hydrophobic amino acids






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






20. Energy storage molecule of carbohydrates for plants






21. Acetic acid formula?






22. Nonpolar - hydrophobic amino acids






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






24. Polar amino acids






25. Name for 5 membered ring






26. Fxn of cholesterol in the membrane?






27. What kind of lipids compromise the lipid bilayer?






28. 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






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






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






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






32. Interconversion btw two anomers






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






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






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






36. Glycosidic linkage of maltose






37. Basic amino acids






38. 2 reasons why fats have more efficient energy stores than carbs






39. Characteristic of basic amino acids






40. Unique feature of glycine






41. Characteristics of polar amino acids






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






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






44. Energy storage molecule of carbohydrates for animals






45. Enzyme that hydrolyzes maltose into 2 glucose molecules?






46. D and L describe what?






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






48. Physiological pH






49. Formula for urea






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