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






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






3. Keloid scars forms because disfuntion of






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






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






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






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






8. High conductivity - isotropic - crystalline






9. Cells that proliferate rapidly (fibroblasts)






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






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






12. ____ are enzymes responsible for protein degradation.






13. Enzyme that really gets the polmerization going!






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






15. Higher Molecular weight degrades slower than ____ MW






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






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






18. The two types of white blood cells:






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






20. ______ Molecular weight degrades slower than lower MW






21. ____ grafts are derived from the other humans.






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






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






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






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






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






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






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






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






30. Drawback of micromaching






31. 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.






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






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






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






35. Mast cells release this






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






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






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






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






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






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






42. List two chemical characteristics of polymers:






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






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






45. This type of feedback creates






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






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






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






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






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