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. 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.






2. Enzyme that really gets the polmerization going!






3. Higher Molecular weight degrades slower than ____ MW






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






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






6. 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?






7. 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.






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






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






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






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






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






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






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






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






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






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






18. Keloid scars forms because disfuntion of






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






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






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






22. ______ Molecular weight degrades slower than lower MW






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






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






25. This type of feedback creates






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






27. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






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






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






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






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






36. ____ are enzymes responsible for protein degradation.






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






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






39. Activates tissue factors aka endothelial damage






40. Keloid scars form due to disfunction of ____.






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






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






43. Cells that don't proliferate (neurons)






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






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






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






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






48. High conductivity - isotropic - crystalline






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






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