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






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






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






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






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






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






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






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






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






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






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






12. Enzyme that really gets the polmerization going!






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






14. Keloid scars form due to disfunction of ____.






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






16. 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?






17. Mast cells release this






18. ____ are enzymes responsible for protein degradation.






19. Cells that don't proliferate (neurons)






20. List two chemical characteristics of polymers:






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






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






23. Drawback of micromaching






24. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






29. Thrombin activates several upstream factors.






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






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






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






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






34. ______ Molecular weight degrades slower than lower MW






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






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






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






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






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






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






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






42. 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.






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






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






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






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






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






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






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






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