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






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






3. Energy storage molecule of carbohydrates for animals






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. Naturally occurring carbohydrates are formed from what?






6. What configuration do all naturally occuring amino acids have?






7. 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)






8. 3 carbon triol that forms backbone of triacylglycerol






9. Enzymes that hydrolyze fats






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






11. Unique feature of proline






12. Name for 6 membered ring






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






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






15. Characteristic of basic amino acids






16. 2 covalent bonds formed in proteins






17. Histidine






18. Basic amino acids






19. Glycosidic linkage of lactose






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






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






22. Characteristics of acidic amino acids






23. Glyceraldehyde






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






25. 2 reasons why fats have more efficient energy stores than carbs






26. Glycosidic linkage of cellulose






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






28. Energy storage molecule of carbohydrates for plants






29. Characteristics of polar amino acids






30. Acidic amino acids






31. Polar amino acids






32. Acetic acid formula?






33. Sugar with an aldehyde at the first carbon position






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






35. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






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






38. Enzyme that hydrolyzes lactose into galactose and glucose into






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






40. Enzyme that hydrolyzes maltose into 2 glucose molecules?






41. 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






42. Sulfur containing amino acids






43. Nonpolar - hydrophobic amino acids






44. Unique feature of cysteine






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






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






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






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






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






50. What kind of lipids compromise the lipid bilayer?