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






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






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






4. List two chemical characteristics of polymers:






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






6. High conductivity - isotropic - crystalline






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






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






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






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






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






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






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






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






15. Keloid scars forms because disfuntion of






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






32. Cells that don't proliferate (neurons)






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






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






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






36. Cells that proliferate rapidly (fibroblasts)






37. Higher Molecular weight degrades slower than ____ MW






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






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






40. Drawback of micromaching






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






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






43. 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.






44. 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?






45. Thrombin activates several upstream factors.






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






47. Mast cells release this






48. Activates tissue factors aka endothelial damage






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






50. The two types of white blood cells:






Can you answer 50 questions in 15 minutes?



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