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






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






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






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






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






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






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






8. Higher Molecular weight degrades slower than ____ MW






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






10. Cells that don't proliferate (neurons)






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






12. 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.






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






14. Keloid scars form due to disfunction of ____.






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






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






17. Keloid scars forms because disfuntion of






18. Drawback of micromaching






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






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






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






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






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






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






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






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






27. Enzyme that really gets the polmerization going!






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






29. Cells that proliferate rapidly (fibroblasts)






30. Mast cells release this






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






32. ____ grafts are derived from the other humans.






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






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






35. The two types of white blood cells:






36. ______ Molecular weight degrades slower than lower MW






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






38. 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.






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






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






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






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






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






44. 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.






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






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






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






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






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






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