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






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






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






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






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






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






7. Thrombin activates several upstream factors.






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






9. Cells that proliferate rapidly (fibroblasts)






10. Enzyme that really gets the polmerization going!






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






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






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






14. 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.






15. Cells that don't proliferate (neurons)






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






17. 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.






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






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






20. List two chemical characteristics of polymers:






21. Keloid scars form due to disfunction of ____.






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






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






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






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






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






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






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






29. This type of feedback creates






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






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






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






33. Activates tissue factors aka endothelial damage






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






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






36. Higher Molecular weight degrades slower than ____ MW






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






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






39. 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?






40. The two types of white blood cells:






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






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






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






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






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






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






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






48. ______ Molecular weight degrades slower than lower MW






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






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