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






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






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






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






5. The two types of white blood cells:






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






7. Enzyme that really gets the polmerization going!






8. List two chemical characteristics of polymers:






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






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






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






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






13. 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.






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






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






16. Cells that proliferate rapidly (fibroblasts)






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






18. ____ are enzymes responsible for protein degradation.






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






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






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






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






23. Keloid scars form due to disfunction of ____.






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






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






26. Keloid scars forms because disfuntion of






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






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






29. 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.






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






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






32. Mast cells release this






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






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






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






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






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






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






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






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






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






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






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






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






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






46. Higher Molecular weight degrades slower than ____ MW






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






48. This type of feedback creates






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






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