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. Glycosidic linkage of cellulose






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






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






4. Fatty acid structure






5. Formula for urea






6. Acetic acid formula?






7. 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






8. Name for 5 membered ring






9. Characteristics of polar amino acids






10. Characteristics of acidic amino acids






11. Glycosidic linkage of lactose






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






13. Energy storage molecule of carbohydrates for animals






14. Unique feature of glycine






15. Molecules with the same atoms - but different bonds






16. D and L describe what?






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






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






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






20. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






22. Glycosidic linkage of maltose






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






24. 3 carbon triol that forms backbone of triacylglycerol






25. Hydrolysis






26. 4 causes of denaturation of proteins






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






28. 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






29. Polar amino acids






30. Fxn of cholesterol in the membrane?






31. 2 covalent bonds formed in proteins






32. Unique feature of proline






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






34. Characteristic of basic amino acids






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






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






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






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






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






40. 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






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






42. What kind of lipids compromise the lipid bilayer?






43. Histidine






44. 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)






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






46. Naturally occurring carbohydrates are formed from what?






47. Basic amino acids






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






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






50. What stabilizes lipid bilayer?