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






2. Characteristics of polar amino acids






3. D and L describe what?






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






5. Interconversion btw two anomers






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






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






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






9. 4 causes of denaturation of proteins






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






11. Formula for urea






12. Glycosidic linkage of lactose






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






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






15. 3 carbon triol that forms backbone of triacylglycerol






16. Enzyme that hydrolyzes lactose into galactose and glucose into






17. Molecules with the same atoms - but different bonds






18. Interaction btw polypeptide subunits arranged in polypeptide. can be covalent bonds or intermolecular forces - disulfide bond that does not form btw residues on the same protein affect (blank)






19. Basic amino acids






20. Characteristics of hydrophobic amino acids






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






22. Physiological pH






23. Nonpolar - hydrophobic amino acids






24. Acidic amino acids






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






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






27. Name for 6 membered ring






28. Enzyme that hydrolyzes maltose into 2 glucose molecules?






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






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






31. Hydrophilic amino acids






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






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






34. Characteristics of acidic amino acids






35. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






36. Energy storage molecule of carbohydrates for animals






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






38. Name for 5 membered ring






39. Fxn of cholesterol in the membrane?






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






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






42. Polar amino acids






43. What stabilizes lipid bilayer?






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






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






46. 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






47. Sulfur containing amino acids






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






49. Glyceraldehyde






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