Test your basic knowledge |

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. 3 carbon triol that forms backbone of triacylglycerol






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






3. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






4. Glyceraldehyde






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






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






7. Enzyme that hydrolyzes lactose into galactose and glucose into






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






9. Energy storage molecule of carbohydrates for plants






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






11. Naturally occurring carbohydrates are formed from what?






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






13. Formula for urea






14. Unique feature of glycine






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






16. Hydrophilic amino acids






17. 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)






18. 4 causes of denaturation of proteins






19. 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






20. What stabilizes lipid bilayer?






21. Characteristics of polar amino acids






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






23. 3 physiological roles of lipids






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






25. Characteristic of basic amino acids






26. Interconversion btw two anomers






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






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






29. Hydrolysis






30. Sulfur containing amino acids






31. D and L describe what?






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






33. Physiological pH






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






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






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






37. Fatty acid structure






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






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






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






41. Glycosidic linkage of maltose






42. Acetic acid formula?






43. Sugar with an aldehyde at the first carbon position






44. What kind of lipids compromise the lipid bilayer?






45. 2 reasons why fats have more efficient energy stores than carbs






46. Energy storage molecule of carbohydrates for animals






47. 2 covalent bonds formed in proteins






48. Name for 5 membered ring






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






50. Glycosidic linkage of cellulose