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. Keloid scars forms because disfuntion of






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






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






4. ______ Molecular weight degrades slower than lower MW






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






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






7. Cells that don't proliferate (neurons)






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






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






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






11. ____ grafts are derived from the other humans.






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






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






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






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






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






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






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






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






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






21. ____ are enzymes responsible for protein degradation.






22. Keloid scars form due to disfunction of ____.






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






24. Activates tissue factors aka endothelial damage






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






26. Enzyme that really gets the polmerization going!






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






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






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






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






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






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






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






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






35. Higher Molecular weight degrades slower than ____ MW






36. List two chemical characteristics of polymers:






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






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






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






40. 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.






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






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






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






44. Drawback of micromaching






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






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






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






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






49. High conductivity - isotropic - crystalline






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