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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. Acidic amino acids






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






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






4. 3 carbon triol that forms backbone of triacylglycerol






5. Physiological pH






6. Characteristics of polar amino acids






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






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






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






10. 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






11. 3 physiological roles of lipids






12. Histidine






13. Glyceraldehyde






14. What kind of lipids compromise the lipid bilayer?






15. Interconversion btw two anomers






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






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






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






19. Formula for urea






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






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






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






23. Enzyme that hydrolyzes lactose into galactose and glucose into






24. Nonpolar - hydrophobic amino acids






25. Characteristic of basic amino acids






26. 4 causes of denaturation of proteins






27. Acetic acid formula?






28. Energy storage molecule of carbohydrates for plants






29. Unique feature of glycine






30. Name for 6 membered ring






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






32. Fxn of cholesterol in the membrane?






33. Unique feature of proline






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






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






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






37. Basic amino acids






38. Enzyme that hydrolyzes maltose into 2 glucose molecules?






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






40. Glycosidic linkage of cellulose






41. Naturally occurring carbohydrates are formed from what?






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






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






44. 2 covalent bonds formed in proteins






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






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






47. Sulfur containing amino acids






48. 2 reasons why fats have more efficient energy stores than carbs






49. Name for 5 membered ring






50. Unique feature of cysteine