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. ______ Molecular weight degrades slower than lower MW






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






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






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






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






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






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






8. This type of feedback creates






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






10. ____ are enzymes responsible for protein degradation.






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






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






13. 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.






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






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






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






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






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






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






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






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






22. Keloid scars forms because disfuntion of






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






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






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






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






27. Activates tissue factors aka endothelial damage






28. Cells that don't proliferate (neurons)






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






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






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






32. Cells that proliferate rapidly (fibroblasts)






33. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






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






39. Thrombin activates several upstream factors.






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






41. ____ grafts are derived from the other humans.






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






43. The two types of white blood cells:






44. 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.






45. High conductivity - isotropic - crystalline






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






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






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






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






50. Drawback of micromaching