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






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






3. 3 carbon triol that forms backbone of triacylglycerol






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






5. Name for 5 membered ring






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






7. Characteristics of polar amino acids






8. Fatty acid structure






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






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






11. Unique feature of cysteine






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






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






14. What stabilizes lipid bilayer?






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






16. 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






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






18. D and L describe what?






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






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






21. Acetic acid formula?






22. Physiological pH






23. Sulfur containing amino acids






24. Characteristics of acidic amino acids






25. Interconversion btw two anomers






26. Energy storage molecule of carbohydrates for animals






27. 2 reasons why fats have more efficient energy stores than carbs






28. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






29. Characteristic of basic amino acids






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






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






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






33. What kind of lipids compromise the lipid bilayer?






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






35. Basic amino acids






36. Sugar with an aldehyde at the first carbon position






37. Formula for urea






38. Nonpolar - hydrophobic amino acids






39. 3 physiological roles of lipids






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






41. Glycosidic linkage of maltose






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






43. Glycosidic linkage of lactose






44. Fxn of cholesterol in the membrane?






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






46. 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






47. Histidine






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






49. Unique feature of glycine






50. Characteristics of hydrophobic amino acids