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 physiological roles of lipids






2. Characteristic of basic amino acids






3. Glycosidic linkage of cellulose






4. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






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






7. 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






8. 4 causes of denaturation of proteins






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






10. Acetic acid formula?






11. 2 covalent bonds formed in proteins






12. Unique feature of proline






13. 2 reasons why fats have more efficient energy stores than carbs






14. 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






15. Enzyme that hydrolyzes maltose into 2 glucose molecules?






16. Formula for urea






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






18. Enzymes that hydrolyze fats






19. Nonpolar - hydrophobic amino acids






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






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






22. Naturally occurring carbohydrates are formed from what?






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






24. 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






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






26. Hydrolysis






27. Hydrophilic amino acids






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






29. D and L describe what?






30. Energy storage molecule of carbohydrates for plants






31. Molecules with the same atoms - but different bonds






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






33. Glycosidic linkage of maltose






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






35. Basic amino acids






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






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






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






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






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






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






42. Glyceraldehyde






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






44. Interconversion btw two anomers






45. What stabilizes lipid bilayer?






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






47. Unique feature of cysteine






48. Name for 6 membered ring






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






50. Characteristics of hydrophobic amino acids