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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. Sugar with a carbonyl group at the 2 carbon position






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






3. Hydrolysis






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






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






6. Characteristic of basic amino acids






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






8. 2 covalent bonds formed in proteins






9. Energy storage molecule of carbohydrates for plants






10. Basic amino acids






11. Polar amino acids






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






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






14. Characteristics of polar amino acids






15. 3 physiological roles of lipids






16. Naturally occurring carbohydrates are formed from what?






17. Fatty acid structure






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






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






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






21. 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)






22. Glyceraldehyde






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






24. Molecules with the same atoms - but different bonds






25. Glycosidic linkage of cellulose






26. Glycosidic linkage of maltose






27. Physiological pH






28. D and L describe what?






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






30. Name for 6 membered ring






31. Hydrophilic amino acids






32. Name for 5 membered ring






33. What kind of lipids compromise the lipid bilayer?






34. Glycosidic linkage of lactose






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






36. Unique feature of cysteine






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






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






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






40. 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






41. Fxn of cholesterol in the membrane?






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






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






44. 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






45. Energy storage molecule of carbohydrates for animals






46. Sulfur containing amino acids






47. Unique feature of proline






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






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






50. Glycosidic linkage of sucrose