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






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






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






4. Mast cells release this






5. Higher Molecular weight degrades slower than ____ MW






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






8. ______ Molecular weight degrades slower than lower MW






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






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






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






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






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






14. 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.






15. 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.






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






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






18. ____ grafts are derived from the other humans.






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






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






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






22. Activates tissue factors aka endothelial damage






23. List two chemical characteristics of polymers:






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






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






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






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






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






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






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






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






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






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






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






35. ____ are enzymes responsible for protein degradation.






36. Enzyme that really gets the polmerization going!






37. Keloid scars form due to disfunction of ____.






38. Keloid scars forms because disfuntion of






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






40. The two types of white blood cells:






41. High conductivity - isotropic - crystalline






42. Thrombin activates several upstream factors.






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






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






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






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






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






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






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






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