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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. Interconversion btw two anomers






3. Characteristics of acidic amino acids






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






5. Name for 5 membered ring






6. 3 physiological roles of lipids






7. Glycosidic linkage of sucrose






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






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






10. Enzyme that hydrolyzes maltose into 2 glucose molecules?






11. Unique feature of cysteine






12. Acidic amino acids






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






14. 3 carbon triol that forms backbone of triacylglycerol






15. Formula for urea






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






17. 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






18. Glyceraldehyde






19. Acetic acid formula?






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






21. Characteristics of polar amino acids






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






23. Characteristics of hydrophobic amino acids






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






25. Glycosidic linkage of lactose






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






27. Characteristic of basic amino acids






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






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






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






31. Molecules with the same atoms - but different bonds






32. Unique feature of proline






33. What kind of lipids compromise the lipid bilayer?






34. Basic amino acids






35. Fxn of cholesterol in the membrane?






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






37. Histidine






38. What stabilizes lipid bilayer?






39. Hydrolysis






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






41. Polar amino acids






42. Glycosidic linkage of maltose






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






44. Energy storage molecule of carbohydrates for plants






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






46. Hydrophilic amino acids






47. Unique feature of glycine






48. Energy storage molecule of carbohydrates for animals






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






50. 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