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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. Unique feature of glycine






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






3. Hydrophilic amino acids






4. Glycosidic linkage of maltose






5. Energy storage molecule of carbohydrates for animals






6. What kind of lipids compromise the lipid bilayer?






7. Unique feature of cysteine






8. 2 reasons why fats have more efficient energy stores than carbs






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






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






11. 4 causes of denaturation of proteins






12. 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






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






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






15. Name for 5 membered ring






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






17. Characteristics of polar amino acids






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






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






20. Basic amino acids






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






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






24. Molecules with the same atoms - but different bonds






25. What stabilizes lipid bilayer?






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






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






28. Fxn of cholesterol in the membrane?






29. 3 physiological roles of lipids






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






31. Energy storage molecule of carbohydrates for plants






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






33. Glycosidic linkage of sucrose






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






35. Characteristic of basic amino acids






36. Formula for urea






37. D and L describe what?






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






39. Nonpolar - hydrophobic amino acids






40. Interconversion btw two anomers






41. Name for 6 membered ring






42. Characteristics of acidic amino acids






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






44. 3 carbon triol that forms backbone of triacylglycerol






45. Glycosidic linkage of cellulose






46. Unique feature of proline






47. Enzymes that hydrolyze fats






48. Acetic acid formula?






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






50. Sugar with an aldehyde at the first carbon position