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. Enzyme that really gets the polmerization going!






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






3. List two chemical characteristics of polymers:






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






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






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






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






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






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






10. 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?






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






12. Thrombin activates several upstream factors.






13. High conductivity - isotropic - crystalline






14. ____ grafts are derived from the other humans.






15. Cells that don't proliferate (neurons)






16. Mast cells release this






17. ______ Molecular weight degrades slower than lower MW






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






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






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






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






22. Drawback of micromaching






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






24. The two types of white blood cells:






25. ____ are enzymes responsible for protein degradation.






26. 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.






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






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






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






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






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






32. This type of feedback creates






33. 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.






34. Keloid scars form due to disfunction of ____.






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






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






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






38. 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.






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






40. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






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






46. Keloid scars forms because disfuntion of






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






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






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






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