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






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






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






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






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






6. 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.






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






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






9. Mast cells release this






10. High conductivity - isotropic - crystalline






11. Keloid scars form due to disfunction of ____.






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






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






14. Cells that proliferate rapidly (fibroblasts)






15. The two types of white blood cells:






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






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






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






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






20. ______ Molecular weight degrades slower than lower MW






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






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






23. List two chemical characteristics of polymers:






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






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






26. 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.






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






28. Enzyme that really gets the polmerization going!






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






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






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






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






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






34. ____ grafts are derived from the other humans.






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






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






37. Drawback of micromaching






38. Activates tissue factors aka endothelial damage






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






40. Cells that don't proliferate (neurons)






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






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






43. ____ are enzymes responsible for protein degradation.






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






45. Thrombin activates several upstream factors.






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






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






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






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






50. Keloid scars forms because disfuntion of