Test your basic knowledge |

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 proliferate rapidly (fibroblasts)






2. 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.






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






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






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






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






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






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






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






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






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






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






13. 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?






14. 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.






15. ____ are enzymes responsible for protein degradation.






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






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






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






19. Higher Molecular weight degrades slower than ____ MW






20. 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.






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






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






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






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






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






26. Cells that don't proliferate (neurons)






27. Keloid scars form due to disfunction of ____.






28. ____ grafts are derived from the other humans.






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






30. Keloid scars forms because disfuntion of






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






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






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






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






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






36. The two types of white blood cells:






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






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






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






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






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






42. Mast cells release this






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






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






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






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






47. Thrombin activates several upstream factors.






48. ______ Molecular weight degrades slower than lower MW






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






50. Drawback of micromaching