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. Enzyme that hydrolyzes lactose into galactose and glucose into






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






3. Glycosidic linkage of cellulose






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






5. Hydrophilic amino acids






6. Energy storage molecule of carbohydrates for plants






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






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






9. Right handed helix w/ carboxyl of one amino acid bound to the amine of another amino acid three residues away - proline never resides in this structure b/c it would place a kink in the helix






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






11. 2 covalent bonds formed in proteins






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






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






14. Sugar with an aldehyde at the first carbon position






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






16. Polar amino acids






17. Characteristics of hydrophobic amino acids






18. Characteristic of basic amino acids






19. Unique feature of cysteine






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






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






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






23. Characteristics of polar amino acids






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






25. Molecules with the same atoms - but different bonds






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






27. Unique feature of glycine






28. D and L describe what?






29. Hydrolysis






30. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






31. Name for 5 membered ring






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






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






34. Enzyme that hydrolyzes maltose into 2 glucose molecules?






35. Fatty acid structure






36. 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






37. Glycosidic linkage of maltose






38. 2 reasons why fats have more efficient energy stores than carbs






39. Histidine






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






41. 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






42. Unique feature of proline






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






44. Glycosidic linkage of sucrose






45. Characteristics of acidic amino acids






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






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






48. Nonpolar - hydrophobic amino acids






49. Name for 6 membered ring






50. Energy storage molecule of carbohydrates for animals