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. Activates tissue factors aka endothelial damage






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






19. ____ are enzymes responsible for protein degradation.






20. ____ grafts are derived from the other humans.






21. High conductivity - isotropic - crystalline






22. Thrombin activates several upstream factors.






23. Drawback of micromaching






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






25. Mast cells release this






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






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






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






29. 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.






30. 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.






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






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






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






34. Keloid scars forms because disfuntion of






35. Cells that don't proliferate (neurons)






36. Enzyme that really gets the polmerization going!






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






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






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






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






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






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






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






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






46. This type of feedback creates






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






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






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






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