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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. Energy storage molecule of carbohydrates for plants






2. Interconversion btw two anomers






3. Characteristics of acidic amino acids






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






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






6. Histidine






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






8. 3 carbon triol that forms backbone of triacylglycerol






9. Nonpolar - hydrophobic amino acids






10. Sugar with an aldehyde at the first carbon position






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






12. Acetic acid formula?






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






14. 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)






15. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






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






17. Characteristics of polar amino acids






18. Glycosidic linkage of sucrose






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






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






21. Naturally occurring carbohydrates are formed from what?






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






23. Unique feature of glycine






24. Acidic amino acids






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






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






27. Fatty acid structure






28. Characteristics of hydrophobic amino acids






29. Basic amino acids






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






31. Energy storage molecule of carbohydrates for animals






32. Sulfur containing amino acids






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






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






35. 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






36. Unique feature of cysteine






37. Glycosidic linkage of lactose






38. Glycosidic linkage of maltose






39. Formula for urea






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






41. Hydrophilic amino acids






42. Polar amino acids






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






44. 2 covalent bonds formed in proteins






45. 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






46. Name for 6 membered ring






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






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






49. What stabilizes lipid bilayer?






50. Enzymes that hydrolyze fats







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