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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. ______ Molecular weight degrades slower than lower MW






2. Enzyme that really gets the polmerization going!






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






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






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






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






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






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






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






10. Mast cells release this






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






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






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






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






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






16. High conductivity - isotropic - crystalline






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






18. Higher Molecular weight degrades slower than ____ MW






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






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






21. This type of feedback creates






22. 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.






23. The two types of white blood cells:






24. List two chemical characteristics of polymers:






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






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






27. Keloid scars forms because disfuntion of






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






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






30. Cells that don't proliferate (neurons)






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






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






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






34. Activates tissue factors aka endothelial damage






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






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






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






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






39. ____ grafts are derived from the other humans.






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






41. Drawback of micromaching






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






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






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






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






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






47. ____ are enzymes responsible for protein degradation.






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






49. 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?






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







Sorry!:) No result found.

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