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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. 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






2. Characteristics of acidic amino acids






3. Formula for urea






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






5. Characteristic of basic amino acids






6. Enzyme that hydrolyzes lactose into galactose and glucose into






7. 3 carbon triol that forms backbone of triacylglycerol






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






9. Acetic acid formula?






10. Characteristics of hydrophobic amino acids






11. Acidic amino acids






12. 2 covalent bonds formed in proteins






13. What stabilizes lipid bilayer?






14. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






15. Glyceraldehyde






16. Polar amino acids






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






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






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






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






21. Unique feature of cysteine






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






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






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






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






26. Glycosidic linkage of lactose






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






28. Glycosidic linkage of sucrose






29. 4 causes of denaturation of proteins






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






31. Naturally occurring carbohydrates are formed from what?






32. Enzymes that hydrolyze fats






33. Histidine






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






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






36. D and L describe what?






37. Unique feature of glycine






38. 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






39. Name for 6 membered ring






40. Hydrolysis






41. Interconversion btw two anomers






42. 2 reasons why fats have more efficient energy stores than carbs






43. 3 physiological roles of lipids






44. Nonpolar - hydrophobic amino acids






45. Sulfur containing amino acids






46. Basic amino acids






47. Enzyme that hydrolyzes maltose into 2 glucose molecules?






48. Fatty acid structure






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






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