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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. Activates tissue factors aka endothelial damage






2. Keloid scars form due to disfunction of ____.






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






4. 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.






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






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






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






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






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






10. Keloid scars forms because disfuntion of






11. ______ Molecular weight degrades slower than lower MW






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






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






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






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






16. List two chemical characteristics of polymers:






17. ____ grafts are derived from the other humans.






18. Drawback of micromaching






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






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






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






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






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






24. Cells that proliferate rapidly (fibroblasts)






25. ____ are enzymes responsible for protein degradation.






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






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






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






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






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






31. The two types of white blood cells:






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






33. High conductivity - isotropic - crystalline






34. Enzyme that really gets the polmerization going!






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






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






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






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






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






40. Cells that don't proliferate (neurons)






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






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






43. 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.






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






45. This type of feedback creates






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






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






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






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






50. 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.







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