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






2. The two types of white blood cells:






3. 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?






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






5. Mast cells release this






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






7. This type of feedback creates






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






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






10. Drawback of micromaching






11. ______ Molecular weight degrades slower than lower MW






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






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






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






15. 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.






16. Keloid scars forms because disfuntion of






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






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






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






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






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






22. ____ grafts are derived from the other humans.






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






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






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






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






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






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






29. List two chemical characteristics of polymers:






30. High conductivity - isotropic - crystalline






31. Thrombin activates several upstream factors.






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






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






34. Activates tissue factors aka endothelial damage






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






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






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






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






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






40. 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.






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






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






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






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






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






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






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






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






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






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