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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. Cells that don't proliferate (neurons)






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






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






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






5. Thrombin activates several upstream factors.






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






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






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






9. Cells that proliferate rapidly (fibroblasts)






10. ____ are enzymes responsible for protein degradation.






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






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






13. 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.






14. Keloid scars form due to disfunction of ____.






15. 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.






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






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






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






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






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






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






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






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






24. Activates tissue factors aka endothelial damage






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






26. Mast cells release this






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






28. Keloid scars forms because disfuntion of






29. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






34. This type of feedback creates






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






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






37. Enzyme that really gets the polmerization going!






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






41. 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?






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






43. High conductivity - isotropic - crystalline






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






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






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






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






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






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






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







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