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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. 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






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






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






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. Formula for urea






6. Glycosidic linkage of cellulose






7. Hydrophilic amino acids






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






9. Glycosidic linkage of lactose






10. 2 covalent bonds formed in proteins






11. Sulfur containing amino acids






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






13. Glyceraldehyde






14. 2 reasons why fats have more efficient energy stores than carbs






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






16. D and L describe what?






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






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






19. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






20. Basic amino acids






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






22. Name for 6 membered ring






23. Energy storage molecule of carbohydrates for plants






24. Energy storage molecule of carbohydrates for animals






25. 3 carbon triol that forms backbone of triacylglycerol






26. 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)






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






28. Molecule can act as a base and as an acid






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






30. Unique feature of cysteine






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






32. Fatty acid structure






33. Acetic acid formula?






34. What stabilizes lipid bilayer?






35. Sugar with an aldehyde at the first carbon position






36. Characteristics of acidic amino acids






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






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






39. 4 causes of denaturation of proteins






40. Enzyme that hydrolyzes maltose into 2 glucose molecules?






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






42. Interconversion btw two anomers






43. Histidine






44. Naturally occurring carbohydrates are formed from what?






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






46. Unique feature of proline






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






48. Glycosidic linkage of sucrose






49. Physiological pH






50. Characteristic of basic amino acids