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






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






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






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






5. This type of feedback creates






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






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






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






9. Cells that don't proliferate (neurons)






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






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






12. Higher Molecular weight degrades slower than ____ MW






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






14. ____ are enzymes responsible for protein degradation.






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






16. 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.






17. Keloid scars form due to disfunction of ____.






18. ______ Molecular weight degrades slower than lower MW






19. Thrombin activates several upstream factors.






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






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






22. Is directed cell migration in response to a concentration gradient of soluble molecules.






23. Enzyme that really gets the polmerization going!






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






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






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






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






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






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






30. List two chemical characteristics of polymers:






31. The two types of white blood cells:






32. Activates tissue factors aka endothelial damage






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






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






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






36. Cells that proliferate rapidly (fibroblasts)






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






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






39. ____ grafts are derived from the other humans.






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






41. Mast cells release this






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






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






44. Keloid scars forms because disfuntion of






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






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






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






48. 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.






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






50. 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.






Can you answer 50 questions in 15 minutes?



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