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






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






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






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






5. Higher Molecular weight degrades slower than ____ MW






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






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






8. The two types of white blood cells:






9. 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.






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






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






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






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






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






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






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






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






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






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






20. This type of feedback creates






21. Drawback of micromaching






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






23. Keloid scars forms because disfuntion of






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






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






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






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






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






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






30. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






35. High conductivity - isotropic - crystalline






36. Cells that don't proliferate (neurons)






37. 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.






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






39. 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?






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






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






42. ____ grafts are derived from the other humans.






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






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






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






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






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






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






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






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







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