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






2. ____ are enzymes responsible for protein degradation.






3. High conductivity - isotropic - crystalline






4. Keloid scars forms because disfuntion of






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






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






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






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






9. ______ Molecular weight degrades slower than lower MW






10. Cells that don't proliferate (neurons)






11. 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?






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






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






14. Enzyme that really gets the polmerization going!






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






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






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






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






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






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






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






22. The two types of white blood cells:






23. 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.






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






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






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






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






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






29. Mast cells release this






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






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






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






33. Keloid scars form due to disfunction of ____.






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






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






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






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






38. 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.






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






40. ____ grafts are derived from the other humans.






41. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






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






47. Drawback of micromaching






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






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






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