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






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






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






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






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






7. Activates tissue factors aka endothelial damage






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






9. High conductivity - isotropic - crystalline






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






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






12. ____ grafts are derived from the other humans.






13. Thrombin activates several upstream factors.






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






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






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






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






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






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






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






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






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






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






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 two types of white blood cells:






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






27. ______ Molecular weight degrades slower than lower MW






28. Mast cells release this






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






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






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






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






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






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






35. List two chemical characteristics of polymers:






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






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






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






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






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






41. Enzyme that really gets the polmerization going!






42. Keloid scars forms because disfuntion of






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






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






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






46. 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.






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






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






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






50. Higher Molecular weight degrades slower than ____ MW