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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 animals






2. Energy storage molecule of carbohydrates for plants






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






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






5. Fatty acid structure






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






7. Fxn of cholesterol in the membrane?






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






9. Physiological pH






10. 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






11. 3 physiological roles of lipids






12. Enzyme that hydrolyzes maltose into 2 glucose molecules?






13. Characteristics of acidic amino acids






14. Unique feature of proline






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






16. 4 causes of denaturation of proteins






17. Sulfur containing amino acids






18. Characteristics of polar amino acids






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






20. Enzymes that hydrolyze fats






21. Acidic amino acids






22. Glyceraldehyde






23. Glycosidic linkage of cellulose






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






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






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






27. Unique feature of cysteine






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






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






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






31. Glycosidic linkage of lactose






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






33. Interconversion btw two anomers






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






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






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






37. Histidine






38. Enzyme that hydrolyzes lactose into galactose and glucose into






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






40. Molecules with the same atoms - but different bonds






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






42. 2 covalent bonds formed in proteins






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






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






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






46. Naturally occurring carbohydrates are formed from what?






47. Hydrolysis






48. 2 things that accelerate the rate of hydrolysis for peptide cleavage?






49. Sugar with an aldehyde at the first carbon position






50. D and L describe what?