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. 4 causes of denaturation of proteins






2. What kind of lipids compromise the lipid bilayer?






3. What stabilizes lipid bilayer?






4. Characteristic of basic amino acids






5. Unique feature of cysteine






6. Formula for urea






7. Acetic acid formula?






8. 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






9. Hydrolysis






10. Interconversion btw two anomers






11. Characteristics of polar amino acids






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






13. 3 physiological roles of lipids






14. Fxn of cholesterol in the membrane?






15. Glyceraldehyde






16. Fatty acid structure






17. Characteristics of hydrophobic amino acids






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






19. Molecules with the same atoms - but different bonds






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






21. Nonpolar - hydrophobic amino acids






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






23. Polar amino acids






24. Glycosidic linkage of lactose






25. 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)






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






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






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






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






30. Hydrophilic amino acids






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






32. Energy storage molecule of carbohydrates for animals






33. 2 reasons why fats have more efficient energy stores than carbs






34. Glycosidic linkage of cellulose






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






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






37. 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






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






39. 3 carbon triol that forms backbone of triacylglycerol






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






41. 2 covalent bonds formed in proteins






42. Enzymes that hydrolyze fats






43. Name for 5 membered ring






44. Physiological pH






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






46. Glycosidic linkage of sucrose






47. Sugar with an aldehyde at the first carbon position






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






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






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