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






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






3. Drawback of micromaching






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






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






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






7. 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.






8. Higher Molecular weight degrades slower than ____ MW






9. Keloid scars forms because disfuntion of






10. 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.






11. Mast cells release this






12. Thrombin activates several upstream factors.






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






14. ____ are enzymes responsible for protein degradation.






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






16. 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?






17. Cells that proliferate rapidly (fibroblasts)






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






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






20. Activates tissue factors aka endothelial damage






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






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






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






24. Keloid scars form due to disfunction of ____.






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






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






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






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






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






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






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






32. Cells that don't proliferate (neurons)






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






34. ____ grafts are derived from the other humans.






35. This type of feedback creates






36. List two chemical characteristics of polymers:






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






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






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






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






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






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






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






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






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






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






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






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






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






50. ______ Molecular weight degrades slower than lower MW