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






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






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






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






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






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






7. Thrombin activates several upstream factors.






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






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






10. 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?






11. The two types of white blood cells:






12. 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.






13. Activates tissue factors aka endothelial damage






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






15. ____ are enzymes responsible for protein degradation.






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






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






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






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






20. Cells that don't proliferate (neurons)






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






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






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






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






25. 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.






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






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






28. Enzyme that really gets the polmerization going!






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






30. This type of feedback creates






31. ____ grafts are derived from the other humans.






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






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






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






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






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






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






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






39. Keloid scars forms because disfuntion of






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






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






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






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






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






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






46. High conductivity - isotropic - crystalline






47. Mast cells release this






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






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






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