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Bio Engineering

Subject : engineering
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. The formation of rust due to corrosion in the body is due to the reaction between these 3 things ____ - ____ - and ____ .






2. Thrombin activates several upstream factors.






3. ____- are polymers that can be repeatedly softened by heating and hardened by cooling.






4. Thrombin also activates protein C-- which deactivates earlier factors in the cascade is known as ___ ___.






5. This cleaves into fibrinogen which creates fibrin (a sticky enzyme that allows blood to clot)






6. The two types of white blood cells:






7. Rather than randomly moving - moves in a directed cell migration manner for specific functions.






8. Are polymer additives used to lower glass transition temperature temperature.






9. Condition in which patients can literally bleed to death.






10. ____ binds to anti- thrombin III (thrombin inhibitor) and increases its potency 1000- fold.






11. No healing of damage neurons is the result of ____ cells that are not able to ____.






12. Resulting from the build up of too much collagen at the surface of injury during the granulation tissue stage of proliferation






13. During granulation stage of proliferation - growth factors that produce this ____(answer)_____ that function in degrading fibrin and replacing it with collagen.






14. GPC separates molecules on the basis of size by their passage over a column packed with a porous matrix. ___ molecules pass through the column more quickly.






15. A ____ implant is designed to elicit specific - intended to host responses.






16. ____ is a measurement that characterizes the breadth of the distribution of a polymer's molecular weight.






17. Process of producing new blood vessels due to a lack on oxygen and thus inducing VEGF.






18. Foreign body giants cells are produced by fusion of ___.






19. Keloid scars forms because disfuntion of






20. Activates tissue factors aka endothelial damage






21. The trigger for activation of enzymes (anything but endothelial cells!)






22. Vascular endothelial growth factor is produced in response to ___ and stimulates ___.






23. A condensation polymerization results with an ester bond between two reactants and this comes off as a result






24. Essentially all metallic biomaterials are ____ - comprised of two or more metals. One of these metals is selected for its ability to support _____ - the formation of a stable oxide layer that resists further corrosion.






25. Drawback of micromaching






26. Neutrophils remove bacteria/damaged cell debris from a wound site through the process of ___.






27. Mast cells release this






28. The fatigue limit is the ___ below which the material can withstand an infinite number of cycles without failure.






29. The process of calibration establishes a quantitative relationship between ____ __ ___ _____ and the direct output of the intstrument (for example time/volume in GPC).






30. A molecular pathway in which the product of each reaction catalyzes the subsequent reaction.






31. Two things needed in the end product of the creation of a scab






32. The fatigue limit is the ___ below which the material can withstand an infinite number of cycles without failure






33. ____ grafts are derived from the other humans.






34. Which of polyermization (condensation/free radical) would you choose to obtain a polymer of high molecular weight?






35. Enzymes (proteins) are not activated only when they are in contact with this type of cells






36. The fibrous capsule surrounding a permanent implant is primarily composed of ___ cells and ____ (matrix).






37. Deformation that cannot be recovered once the load is removed from the material is ____ deformation.






38. Damaged cells at the site of injury (mast cells) release ___ (glycosaminoglycan).






39. ____ are enzymes responsible for protein degradation.






40. Cell found in the lining of the blood vessels that release heparin and are a part of the negative feedback system.






41. Addition polymerization is commonly initiated by ___ - atoms that have an unpaired electron.






42. ____ describes the ability of a device to function appropriately in the presence of blood.






43. This type of feedback creates






44. Collagen ____ is responsible for the gradual gain in mechanical properties of wounded tissue between roughly 4 and 52 weeks post- injury.






45. Classify the following polymers into appropriate families based on their bond structure i.e. the polymer is an example of poly ____.






46. Where are the tissue factors found when they're inactivated






47. Polyethylene oxide grafting to biomaterials was developed to prevent coagulation by interfering with/preventing ___ ___.






48. Enzyme that really gets the polmerization going!






49. The calculation of a polymer's molecular weight (weight average and number number average) is based upon values for ____ and ___.






50. Relative to free radical polymerization - condensation polymerization generally produces polymer of relatively ____ molecular weight.







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