Test your basic knowledge |

Bio Engineering

Subject : engineering
Instructions:
  • Answer 50 questions in 30 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 value of applied stress below which a material will not fail no matter the number of ____ applied.






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






4. Enzyme that really gets the polmerization going!






5. Keloid scars form due to disfunction of ____.






6. ____ grafts are derived from the other humans.






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






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






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






10. Keloid scars forms because disfuntion of






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






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






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






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






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






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






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






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






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






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






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






22. 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.






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






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






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






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






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






28. Cells that proliferate rapidly (fibroblasts)






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






30. High conductivity - isotropic - crystalline






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






32. Cells that don't proliferate (neurons)






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






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






35. List two chemical characteristics of polymers:






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






37. This type of feedback creates






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






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






40. ______ Molecular weight degrades slower than lower MW






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






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






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






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






45. 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?






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






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






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






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






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