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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. Enzyme that hydrolyzes maltose into 2 glucose molecules?






2. 4 causes of denaturation of proteins






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






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






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






6. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






8. Hydrolysis






9. Molecules with the same atoms - but different bonds






10. Glycosidic linkage of cellulose






11. Sugar with an aldehyde at the first carbon position






12. 2 reasons why fats have more efficient energy stores than carbs






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






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






15. Name for 5 membered ring






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






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






18. 3 physiological roles of lipids






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






20. Fxn of cholesterol in the membrane?






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






22. Basic amino acids






23. Glyceraldehyde






24. Glycosidic linkage of sucrose






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






26. What kind of lipids compromise the lipid bilayer?






27. Acetic acid formula?






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






29. Acidic amino acids






30. 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






31. Interconversion btw two anomers






32. Enzyme that hydrolyzes lactose into galactose and glucose into






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






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






35. Fatty acid structure






36. Characteristic of basic amino acids






37. D and L describe what?






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






39. Energy storage molecule of carbohydrates for plants






40. 3 carbon triol that forms backbone of triacylglycerol






41. Energy storage molecule of carbohydrates for animals






42. Unique feature of glycine






43. Glycosidic linkage of lactose






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






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






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






47. Sulfur containing amino acids






48. Hydrophilic amino acids






49. Polar amino acids






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