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






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






3. ______ Molecular weight degrades slower than lower MW






4. 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?






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






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






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






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






9. Drawback of micromaching






10. 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.






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






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






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






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






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






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






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






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






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






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






21. ____ are enzymes responsible for protein degradation.






22. This type of feedback creates






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






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






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






26. Cells that proliferate rapidly (fibroblasts)






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






28. Thrombin activates several upstream factors.






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






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






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






32. Mast cells release this






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






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






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






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






37. Keloid scars forms because disfuntion of






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






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






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






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






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






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






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






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






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






47. 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.






48. Cells that don't proliferate (neurons)






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






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