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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. Hydrolysis






2. Unique feature of glycine






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






4. Formula for urea






5. Name for 5 membered ring






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






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. Glyceraldehyde






9. Name for 6 membered ring






10. D and L describe what?






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






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






13. Sulfur containing amino acids






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






15. 4 causes of denaturation of proteins






16. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






18. Hydrophilic amino acids






19. Acetic acid formula?






20. Characteristics of hydrophobic amino acids






21. Enzyme that hydrolyzes lactose into galactose and glucose into






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






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






24. Glycosidic linkage of cellulose






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






26. What kind of lipids compromise the lipid bilayer?






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






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






29. Unique feature of proline






30. Characteristics of acidic amino acids






31. Acidic amino acids






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






33. Histidine






34. 3 physiological roles of lipids






35. Fatty acid structure






36. Glycosidic linkage of lactose






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






38. Energy storage molecule of carbohydrates for plants






39. 2 covalent bonds formed in proteins






40. Molecules with the same atoms - but different bonds






41. 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






42. Glycosidic linkage of maltose






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






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






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






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






47. Enzymes that hydrolyze fats






48. Nonpolar - hydrophobic amino acids






49. Naturally occurring carbohydrates are formed from what?






50. What stabilizes lipid bilayer?