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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. Fxn of cholesterol in the membrane?






2. Characteristics of acidic amino acids






3. Nonpolar - hydrophobic amino acids






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






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






6. Glyceraldehyde






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






8. Naturally occurring carbohydrates are formed from what?






9. Acidic amino acids






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






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






12. 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






13. Histidine






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






15. Energy storage molecule of carbohydrates for animals






16. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






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






19. Sulfur containing amino acids






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






21. Energy storage molecule of carbohydrates for plants






22. Physiological pH






23. 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






24. Acetic acid formula?






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






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






27. D and L describe what?






28. Fatty acid structure






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






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






31. 1.has partial double bond character due to resonance 2. it cannot rotate 3. amide H is someWhat acidic and can H bond






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






33. Unique feature of proline






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






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






36. Basic amino acids






37. Unique feature of glycine






38. Enzyme that hydrolyzes lactose into galactose and glucose into






39. Hydrophilic amino acids






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






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






42. Unique feature of cysteine






43. Enzymes that hydrolyze fats






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






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






46. Enzyme that hydrolyzes maltose into 2 glucose molecules?






47. Polar amino acids






48. Name for 6 membered ring






49. Glycosidic linkage of lactose






50. Hydrolysis






Can you answer 50 questions in 15 minutes?



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