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






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






3. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






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






9. 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?






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






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






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






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






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






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






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






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






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






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






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






21. 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.






22. This type of feedback creates






23. Enzyme that really gets the polmerization going!






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






25. Higher Molecular weight degrades slower than ____ MW






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






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






28. ____ grafts are derived from the other humans.






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






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






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






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






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






34. Thrombin activates several upstream factors.






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






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






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






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






39. Keloid scars forms because disfuntion of






40. Cardiac bypass surgery in which a vein from a patient's leg is transplanted to the patient's heart is an example of the us of ____ tissue.






41. The two types of white blood cells:






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






43. ______ Molecular weight degrades slower than lower MW






44. 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.






45. Mast cells release this






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






47. Drawback of micromaching






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






49. High conductivity - isotropic - crystalline






50. Activates tissue factors aka endothelial damage