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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. Sugar with a carbonyl group at the 2 carbon position






2. 3 physiological roles of lipids






3. Physiological pH






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






5. Energy storage molecule of carbohydrates for animals






6. Fxn of cholesterol in the membrane?






7. 2 reasons why fats have more efficient energy stores than carbs






8. Sugar with an aldehyde at the first carbon position






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






10. 4 causes of denaturation of proteins






11. 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






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






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






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






15. Unique feature of glycine






16. Glycosidic linkage of sucrose






17. Glyceraldehyde






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






19. Interconversion btw two anomers






20. Hydrophilic amino acids






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






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






23. 2 covalent bonds formed in proteins






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






25. Glycosidic linkage of maltose






26. Naturally occurring carbohydrates are formed from what?






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






28. 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)






29. What kind of lipids compromise the lipid bilayer?






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






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






32. Glycosidic linkage of cellulose






33. What stabilizes lipid bilayer?






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






35. D and L describe what?






36. Enzyme that hydrolyzes maltose into 2 glucose molecules?






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






38. Enzymes that hydrolyze fats






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






40. Acetic acid formula?






41. Hydrolysis






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






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






44. Characteristics of acidic amino acids






45. Sulfur containing amino acids






46. Name for 5 membered ring






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






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






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






50. Enzyme that hydrolyzes lactose into galactose and glucose into