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. Condition in which patients can literally bleed to death.






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






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






4. ____ grafts are derived from the other humans.






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






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






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






8. Thrombin activates several upstream factors.






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






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






12. Keloid scars forms because disfuntion of






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






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






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






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






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






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






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






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






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






22. High conductivity - isotropic - crystalline






23. This type of feedback creates






24. Mast cells release this






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






26. Activates tissue factors aka endothelial damage






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






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






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






30. Higher Molecular weight degrades slower than ____ MW






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






32. Keloid scars form due to disfunction of ____.






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






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






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






36. 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.






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






38. Enzyme that really gets the polmerization going!






39. List two chemical characteristics of polymers:






40. 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?






41. Drawback of micromaching






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






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






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






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






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






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






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






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






50. 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.