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






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






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






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






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






6. Keloid scars form due to disfunction of ____.






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






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






9. Drawback of micromaching






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






11. Keloid scars forms because disfuntion of






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






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






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






15. Cells that don't proliferate (neurons)






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






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






18. ______ Molecular weight degrades slower than lower MW






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






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






21. 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.






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






23. Thrombin activates several upstream factors.






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






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






26. ____ grafts are derived from the other humans.






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






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






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






30. 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.






31. The two types of white blood cells:






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






33. This type of feedback creates






34. Activates tissue factors aka endothelial damage






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






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






37. High conductivity - isotropic - crystalline






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






39. Enzyme that really gets the polmerization going!






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






41. List two chemical characteristics of polymers:






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






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






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






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






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






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






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






49. 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?






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