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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. This type of feedback creates






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






3. Cells that proliferate rapidly (fibroblasts)






4. What type of materials are used for photolithography? (substrate is a silicon wafer - built up material is some _____ ____ )






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






6. ____ grafts are derived from the other humans.






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






8. 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.






9. The fatigue limit is value of applied stress below which a material will not fail no matter the number of ____ applied.






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






11. Disfunction of _____ (cells) producing collagenase during the _____ phase of wound healing may form Keloid scars.






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






13. Cardiac bypass surgery in which a vein from a patient's leg is transplanted to the patient's heart is an example of the us of ____ tissue.






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






15. What types of wound healing results from injury with inflammation?






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






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






18. ______ Molecular weight degrades slower than lower MW






19. ____ is the process by which cells involved in inflammation internalize and destroy foreign material.






20. In order to produce a blood clot - thrombin cleaves/activates ____ and ____.






21. Drawback of micromaching






22. Mast cells release this






23. Process that makes long fibers (fiber drawing) by forcing a fluid through an oriface.






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






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






26. High conductivity - isotropic - crystalline






27. _____ establishes a quantitative relationship between measured output values from an instrument and known standards of what is being measured.






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






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






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






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






32. ____ are enzymes responsible for protein degradation.






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






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






35. Keloid scars forms because disfuntion of






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






37. The two types of white blood cells:






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






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






40. The glass transition temperature of a poymer at which a polymer transforms from a ____ state to a ___ state.






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






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






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






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






45. Thrombin activates several upstream factors.






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






47. Enzyme that really gets the polmerization going!






48. List two chemical characteristics of polymers:






49. Cells that don't proliferate (neurons)






50. Keloid scars form due to disfunction of ____.







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