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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. (R) and (S) describe what?






2. Unique feature of cysteine






3. Characteristics of acidic amino acids






4. Physiological pH






5. Glycosidic linkage of sucrose






6. Characteristic of basic amino acids






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






8. Characteristics of polar amino acids






9. Formula for urea






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






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






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






13. 3 carbon triol that forms backbone of triacylglycerol






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






15. What kind of lipids compromise the lipid bilayer?






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






17. Fatty acid structure






18. Characteristics of hydrophobic amino acids






19. Glycosidic linkage of maltose






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






21. Glyceraldehyde






22. 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






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






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






25. 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






26. Sugar with an aldehyde at the first carbon position






27. What configuration do all naturally occuring amino acids have?






28. Enzyme that hydrolyzes lactose into galactose and glucose into






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






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






31. Interconversion btw two anomers






32. Nonpolar - hydrophobic amino acids






33. Naturally occurring carbohydrates are formed from what?






34. 2 reasons why fats have more efficient energy stores than carbs






35. 2 covalent bonds formed in proteins






36. 3 physiological roles of lipids






37. Glycosidic linkage of cellulose






38. Name for 6 membered ring






39. Fxn of cholesterol in the membrane?






40. Energy storage molecule of carbohydrates for plants






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






42. 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)






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






44. Acidic amino acids






45. Unique feature of glycine






46. Unique feature of proline






47. Polar amino acids






48. Histidine






49. Energy storage molecule of carbohydrates for animals






50. D and L describe what?