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






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






3. Keloid scars forms because disfuntion of






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






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






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






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






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






9. Mast cells release this






10. Cells that don't proliferate (neurons)






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






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






13. Drawback of micromaching






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






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






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






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






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






19. Cells that proliferate rapidly (fibroblasts)






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






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






22. 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.






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






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






25. 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.






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






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






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






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






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






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






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






33. High conductivity - isotropic - crystalline






34. This type of feedback creates






35. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






40. ____ are enzymes responsible for protein degradation.






41. List two chemical characteristics of polymers:






42. Enzyme that really gets the polmerization going!






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






44. 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?






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






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






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






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






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






50. ____ grafts are derived from the other humans.