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






2. 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.






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






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






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






6. Keloid scars form due to disfunction of ____.






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






8. 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?






9. Enzyme that really gets the polmerization going!






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






11. ______ Molecular weight degrades slower than lower MW






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






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






14. List two chemical characteristics of polymers:






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






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






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






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






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






20. The two types of white blood cells:






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






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






23. Keloid scars forms because disfuntion of






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






25. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






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






31. Drawback of micromaching






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






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






34. High conductivity - isotropic - crystalline






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






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






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






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






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






40. Thrombin activates several upstream factors.






41. Activates tissue factors aka endothelial damage






42. ____ are enzymes responsible for protein degradation.






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






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






45. Cells that don't proliferate (neurons)






46. Cells that proliferate rapidly (fibroblasts)






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






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






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






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