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






2. Glycosidic linkage of sucrose






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






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






5. Glycosidic linkage of cellulose






6. Nonpolar - hydrophobic amino acids






7. Fatty acid structure






8. Sugar with an aldehyde at the first carbon position






9. Polar amino acids






10. Name for 5 membered ring






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






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






13. Physiological pH






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






15. Characteristics of hydrophobic amino acids






16. D and L describe what?






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






18. Characteristics of acidic amino acids






19. 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






20. Unique feature of cysteine






21. Molecules with the same atoms - but different bonds






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






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






24. Fxn of cholesterol in the membrane?






25. Glycosidic linkage of lactose






26. Energy storage molecule of carbohydrates for animals






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






28. Enzyme that hydrolyzes lactose into galactose and glucose into






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






30. Interconversion btw two anomers






31. What kind of lipids compromise the lipid bilayer?






32. 3 physiological roles of lipids






33. Naturally occurring carbohydrates are formed from what?






34. 2 covalent bonds formed in proteins






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






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






37. Glyceraldehyde






38. Name for 6 membered ring






39. Enzyme that hydrolyzes maltose into 2 glucose molecules?






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






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






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






43. Unique feature of proline






44. 2 reasons why fats have more efficient energy stores than carbs






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






46. Glycosidic linkage of maltose






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






48. Acetic acid formula?






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






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






Can you answer 50 questions in 15 minutes?



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