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






2. Sulfur containing amino acids






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






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






5. Energy storage molecule of carbohydrates for plants






6. Enzymes that hydrolyze fats






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






8. Naturally occurring carbohydrates are formed from what?






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






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






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






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






13. Enzyme that hydrolyzes maltose into 2 glucose molecules?






14. 2 covalent bonds formed in proteins






15. Polar amino acids






16. Unique feature of glycine






17. Unique feature of cysteine






18. Name for 6 membered ring






19. Fxn of cholesterol in the membrane?






20. Glyceraldehyde






21. Glycosidic linkage of maltose






22. Nonpolar - hydrophobic amino acids






23. Characteristics of polar amino acids






24. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






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






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






28. Basic amino acids






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






30. Physiological pH






31. Glycosidic linkage of sucrose






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






33. 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






34. 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






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






36. 3 carbon triol that forms backbone of triacylglycerol






37. 3 physiological roles of lipids






38. Characteristics of hydrophobic amino acids






39. 2 reasons why fats have more efficient energy stores than carbs






40. Acidic amino acids






41. Glycosidic linkage of lactose






42. Characteristic of basic amino acids






43. Histidine






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






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






46. Hydrophilic amino acids






47. Enzyme that hydrolyzes lactose into galactose and glucose into






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






49. What stabilizes lipid bilayer?






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