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






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






3. 4 causes of denaturation of proteins






4. Glycosidic linkage of lactose






5. 2 covalent bonds formed in proteins






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






7. Enzyme that hydrolyzes lactose into galactose and glucose into






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






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






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






11. What kind of lipids compromise the lipid bilayer?






12. Molecules with the same atoms - but different bonds






13. What stabilizes lipid bilayer?






14. Physiological pH






15. 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)






16. Nonpolar - hydrophobic amino acids






17. Enzymes that hydrolyze fats






18. Name for 5 membered ring






19. Energy storage molecule of carbohydrates for plants






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






21. Sugar with an aldehyde at the first carbon position






22. 3 carbon triol that forms backbone of triacylglycerol






23. Polar amino acids






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






25. Unique feature of proline






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






27. Glyceraldehyde






28. 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






29. Glycosidic linkage of maltose






30. Formula for urea






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






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






33. Fxn of cholesterol in the membrane?






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






35. Sulfur containing amino acids






36. Characteristic of basic amino acids






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






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






39. Glycosidic linkage of cellulose






40. Unique feature of cysteine






41. Histidine






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






43. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






44. Energy storage molecule of carbohydrates for animals






45. Naturally occurring carbohydrates are formed from what?






46. Enzyme that hydrolyzes maltose into 2 glucose molecules?






47. 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






48. Glycosidic linkage of sucrose






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






50. Acetic acid formula?