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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. Naturally occurring carbohydrates are formed from what?






2. Glyceraldehyde






3. What stabilizes lipid bilayer?






4. 3 physiological roles of lipids






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






6. Acidic amino acids






7. Nonpolar - hydrophobic amino acids






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






9. Name for 5 membered ring






10. Basic amino acids






11. Energy storage molecule of carbohydrates for plants






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






13. 2 reasons why fats have more efficient energy stores than carbs






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






15. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






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






18. Sulfur containing amino acids






19. Histidine






20. Characteristics of polar amino acids






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






22. Unique feature of cysteine






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






24. Characteristics of acidic amino acids






25. Physiological pH






26. Acetic acid formula?






27. Glycosidic linkage of maltose






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






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






30. 3 carbon triol that forms backbone of triacylglycerol






31. Molecules with the same atoms - but different bonds






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






33. PH at which the amino acid has a net neutral charge






34. 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






35. Hydrophilic amino acids






36. Fatty acid structure






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






38. Enzyme that hydrolyzes maltose into 2 glucose molecules?






39. Energy storage molecule of carbohydrates for animals






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






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






42. What kind of lipids compromise the lipid bilayer?






43. Sugar with an aldehyde at the first carbon position






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






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






46. 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)






47. Unique feature of glycine






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






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






50. 4 causes of denaturation of proteins