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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. Glycosidic linkage of sucrose






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






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






4. Glycosidic linkage of lactose






5. Right handed helix w/ carboxyl of one amino acid bound to the amine of another amino acid three residues away - proline never resides in this structure b/c it would place a kink in the helix






6. Physiological pH






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






8. Glyceraldehyde






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






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






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






12. What kind of lipids compromise the lipid bilayer?






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






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






15. Energy storage molecule of carbohydrates for plants






16. Name for 6 membered ring






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






18. Interconversion btw two anomers






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






20. Fxn of cholesterol in the membrane?






21. D and L describe what?






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






23. Acetic acid formula?






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






25. Name for 5 membered ring






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






27. Histidine






28. Polar amino acids






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






30. What stabilizes lipid bilayer?






31. Hydrolysis






32. Enzyme that hydrolyzes maltose into 2 glucose molecules?






33. 4 causes of denaturation of proteins






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






35. Enzyme that hydrolyzes lactose into galactose and glucose into






36. 2 reasons why fats have more efficient energy stores than carbs






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






38. Fatty acid structure






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






40. Characteristic of basic amino acids






41. 2 covalent bonds formed in proteins






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






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






44. Sugar with an aldehyde at the first carbon position






45. Characteristics of hydrophobic amino acids






46. Energy storage molecule of carbohydrates for animals






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






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






49. Glycosidic linkage of maltose






50. Characteristics of acidic amino acids