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






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






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






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






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






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






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






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






9. High conductivity - isotropic - crystalline






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






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






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






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






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






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






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






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






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






19. The two types of white blood cells:






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






21. Keloid scars forms because disfuntion of






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






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






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






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






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






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






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






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






30. 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.






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






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






33. 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.






34. List two chemical characteristics of polymers:






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






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






37. ______ Molecular weight degrades slower than lower MW






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






39. Thrombin activates several upstream factors.






40. Enzyme that really gets the polmerization going!






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






42. ____ grafts are derived from the other humans.






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






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






45. Cells that proliferate rapidly (fibroblasts)






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






47. Keloid scars form due to disfunction of ____.






48. Higher Molecular weight degrades slower than ____ MW






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







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