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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. Enzyme that hydrolyzes maltose into 2 glucose molecules?






2. Unique feature of glycine






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






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






5. 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)






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






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






8. Nonpolar - hydrophobic amino acids






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






10. D and L describe what?






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






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






13. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






14. Name for 5 membered ring






15. Enzyme that hydrolyzes lactose into galactose and glucose into






16. Acetic acid formula?






17. Physiological pH






18. 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






19. Unique feature of cysteine






20. Characteristics of hydrophobic amino acids






21. Molecules with the same atoms - but different bonds






22. Energy storage molecule of carbohydrates for animals






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






24. Glycosidic linkage of lactose






25. Hydrolysis






26. Histidine






27. Name for 6 membered ring






28. What configuration do all naturally occuring amino acids have?






29. Acidic amino acids






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






31. 3 carbon triol that forms backbone of triacylglycerol






32. Formula for urea






33. Fatty acid structure






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






35. Characteristics of polar amino acids






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






37. Interconversion btw two anomers






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






39. 2 covalent bonds formed in proteins






40. Sulfur containing amino acids






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






42. Basic amino acids






43. Glycosidic linkage of maltose






44. Unique feature of proline






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






46. Characteristics of acidic amino acids






47. 4 causes of denaturation of proteins






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






49. Sugar with an aldehyde at the first carbon position






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