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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 things that accelerate the rate of hydrolysis for peptide cleavage?






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






4. 2 covalent bonds formed in proteins






5. Glycosidic linkage of sucrose






6. 2 reasons why fats have more efficient energy stores than carbs






7. Sulfur containing amino acids






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






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






10. 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






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






12. Acetic acid formula?






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






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






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






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






17. Nonpolar - hydrophobic amino acids






18. What kind of lipids compromise the lipid bilayer?






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






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






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






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






23. 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)






24. Name for 5 membered ring






25. Enzyme that hydrolyzes maltose into 2 glucose molecules?






26. Hydrophilic amino acids






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






28. Formula for urea






29. Physiological pH






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






31. Sugar with an aldehyde at the first carbon position






32. Unique feature of proline






33. Energy storage molecule of carbohydrates for animals






34. Enzymes that hydrolyze fats






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






36. Name for 6 membered ring






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






38. Unique feature of cysteine






39. 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






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






41. D and L describe what?






42. Energy storage molecule of carbohydrates for plants






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






44. Characteristics of hydrophobic amino acids






45. Basic amino acids






46. Glycosidic linkage of lactose






47. Characteristics of polar amino acids






48. Glycosidic linkage of cellulose






49. Hydrolysis






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