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






2. Sugar with an aldehyde at the first carbon position






3. Energy storage molecule of carbohydrates for animals






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






5. 3 physiological roles of lipids






6. D and L describe what?






7. Physiological pH






8. Sulfur containing amino acids






9. Molecules with the same atoms - but different bonds






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






11. Fxn of cholesterol in the membrane?






12. Characteristics of polar amino acids






13. Hydrophilic amino acids






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






15. Acetic acid formula?






16. 4 causes of denaturation of proteins






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






18. Glycosidic linkage of cellulose






19. Hydrolysis






20. Energy storage molecule of carbohydrates for plants






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






22. Unique feature of glycine






23. Formula for urea






24. 2 reasons why fats have more efficient energy stores than carbs






25. Enzyme that hydrolyzes maltose into 2 glucose molecules?






26. Naturally occurring carbohydrates are formed from what?






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






28. Characteristic of basic amino acids






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






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






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






32. 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






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






34. Unique feature of proline






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






36. 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






37. Glyceraldehyde






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






39. Name for 5 membered ring






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






41. Nonpolar - hydrophobic amino acids






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






43. Glycosidic linkage of lactose






44. Characteristics of acidic amino acids






45. 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)






46. Histidine






47. Polar amino acids






48. 3 carbon triol that forms backbone of triacylglycerol






49. Acidic amino acids






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