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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. Name for 5 membered ring






2. Nonpolar - hydrophobic amino acids






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






4. Glycosidic linkage of maltose






5. Characteristics of hydrophobic amino acids






6. What kind of lipids compromise the lipid bilayer?






7. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






9. Enzyme that hydrolyzes lactose into galactose and glucose into






10. Energy storage molecule of carbohydrates for plants






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






12. 2 covalent bonds formed in proteins






13. Name for 6 membered ring






14. Glycosidic linkage of lactose






15. Unique feature of glycine






16. Acidic amino acids






17. Characteristics of acidic amino acids






18. 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






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






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






21. Hydrophilic amino acids






22. Unique feature of cysteine






23. Glycosidic linkage of sucrose






24. Enzyme that hydrolyzes maltose into 2 glucose molecules?






25. Glyceraldehyde






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






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






28. Fatty acid structure






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






30. D and L describe what?






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






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






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






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






35. Energy storage molecule of carbohydrates for animals






36. 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






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






38. Characteristics of polar amino acids






39. Basic amino acids






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






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






42. Formula for urea






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






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






45. Sugar with an aldehyde at the first carbon position






46. 3 carbon triol that forms backbone of triacylglycerol






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






48. Unique feature of proline






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






50. 1. it exists in solution in equilibrium with linear form 2. mutarotation occurs readily 3. it is a reducing sugar - and reacts positively w/ Benedict's reagent







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