Test your basic knowledge |

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. Thrombin activates several upstream factors.






2. Cells that proliferate slowly over time (aka liver)






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






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






5. ____ grafts are derived from the other humans.






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






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






8. Activates tissue factors aka endothelial damage






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






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






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






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






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






14. You're working on a square polymeric implant of 5cm length and 2mm thick. You've been asked to suggest a precise way to fabricate it - what would you suggest?






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






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






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






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






19. 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.






20. Type of fiber drawing that controls details of a polymer by etching on a microscopic level; thus - controlling mechanical properties as well






21. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






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






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






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






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






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






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






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






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






34. Cells that don't proliferate (neurons)






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






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






37. Drawback of micromaching






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






39. ______ Molecular weight degrades slower than lower MW






40. Enzyme that really gets the polmerization going!






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






42. ____ are enzymes responsible for protein degradation.






43. High conductivity - isotropic - crystalline






44. 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.






45. Keloid scars form due to disfunction of ____.






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






47. Keloid scars forms because disfuntion of






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






49. The two types of white blood cells:






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