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. 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?






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






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






4. Keloid scars form due to disfunction of ____.






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






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






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






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






9. Keloid scars forms because disfuntion of






10. 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.






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






12. High conductivity - isotropic - crystalline






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






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






15. 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.






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






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






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






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






20. Thrombin activates several upstream factors.






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






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






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






24. Drawback of micromaching






25. ______ Molecular weight degrades slower than lower MW






26. List two chemical characteristics of polymers:






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






28. Mast cells release this






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






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






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






32. ____ are enzymes responsible for protein degradation.






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






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






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






36. ____ grafts are derived from the other humans.






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






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






39. This type of feedback creates






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






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






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






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






44. Enzyme that really gets the polmerization going!






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






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






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






48. Activates tissue factors aka endothelial damage






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






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