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






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






3. Formula for urea






4. Enzyme that hydrolyzes maltose into 2 glucose molecules?






5. Unique feature of cysteine






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






7. Enzymes that hydrolyze fats






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






9. Glyceraldehyde






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






11. Acidic amino acids






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






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






14. Name for 6 membered ring






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






16. (+) and (-) describe what?






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






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






19. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






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






22. What kind of lipids compromise the lipid bilayer?






23. Glycosidic linkage of lactose






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






25. Interconversion btw two anomers






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






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






28. 3 physiological roles of lipids






29. Fxn of cholesterol in the membrane?






30. 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






31. Molecules with the same atoms - but different bonds






32. Name for 5 membered ring






33. Sulfur containing amino acids






34. 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






35. Energy storage molecule of carbohydrates for plants






36. 3 carbon triol that forms backbone of triacylglycerol






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. Sugar with a carbonyl group at the 2 carbon position






39. Characteristic of basic amino acids






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






41. Basic amino acids






42. Acetic acid formula?






43. Characteristics of hydrophobic amino acids






44. Hydrophilic amino acids






45. 2 covalent bonds formed in proteins






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






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






48. Polar amino acids






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






50. Nonpolar - hydrophobic amino acids