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. Diastereomers that vary in the configuration of 1 chiral center






3. Physiological pH






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






5. Interconversion btw two anomers






6. Energy storage molecule of carbohydrates for plants






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






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. Sulfur containing amino acids






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






11. Unique feature of glycine






12. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






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






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






16. Polar amino acids






17. Molecules with the same atoms - but different bonds






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






19. Formula for urea






20. Characteristics of hydrophobic amino acids






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






22. Enzyme that hydrolyzes maltose into 2 glucose molecules?






23. Naturally occurring carbohydrates are formed from what?






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






25. Characteristics of acidic amino acids






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






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






28. Basic amino acids






29. 4 causes of denaturation of proteins






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






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






32. D and L describe what?






33. 3 carbon triol that forms backbone of triacylglycerol






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






35. Fxn of cholesterol in the membrane?






36. 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






37. 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






38. Name for 6 membered ring






39. Glycosidic linkage of lactose






40. Glycosidic linkage of sucrose






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






42. Nonpolar - hydrophobic amino acids






43. Acetic acid formula?






44. Unique feature of proline






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






46. Fatty acid structure






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






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






49. 3 physiological roles of lipids






50. Enzymes that hydrolyze fats