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






2. ______ Molecular weight degrades slower than lower MW






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






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






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






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






7. Higher Molecular weight degrades slower than ____ MW






8. Keloid scars form due to disfunction of ____.






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






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






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






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






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






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






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






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






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






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






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






20. Keloid scars forms because disfuntion of






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






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






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






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






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






26. ____ grafts are derived from the other humans.






27. Drawback of micromaching






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






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






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






31. Cells that proliferate rapidly (fibroblasts)






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






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






34. Thrombin activates several upstream factors.






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






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






37. Enzyme that really gets the polmerization going!






38. Activates tissue factors aka endothelial damage






39. ____ are enzymes responsible for protein degradation.






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






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






42. Cells that don't proliferate (neurons)






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






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






45. 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.






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






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






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






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






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