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. High conductivity - isotropic - crystalline






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






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






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






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






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






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






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






9. ____ grafts are derived from the other humans.






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






11. List two chemical characteristics of polymers:






12. This type of feedback creates






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






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






15. ____ are enzymes responsible for protein degradation.






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






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






18. Keloid scars form due to disfunction of ____.






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






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






21. Mast cells release this






22. Cells that don't proliferate (neurons)






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






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






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






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






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






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






29. Cells that proliferate rapidly (fibroblasts)






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






31. Enzyme that really gets the polmerization going!






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






33. Higher Molecular weight degrades slower than ____ MW






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






35. Drawback of micromaching






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






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






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






39. Thrombin activates several upstream factors.






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






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






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






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






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






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






46. 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.






47. 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.






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






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