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






2. ______ Molecular weight degrades slower than lower MW






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






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






5. Keloid scars form due to disfunction of ____.






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






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






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






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






10. Drawback of micromaching






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






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






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






14. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






19. Essentially all metallic biomaterials are ____ - comprised of two or more metals. One of these metals is selected for its ability to support _____ - the formation of a stable oxide layer that resists further corrosion.






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






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






22. This type of feedback creates






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






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






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






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






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






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






29. Mast cells release this






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






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






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






33. Keloid scars forms because disfuntion of






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






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






36. List two chemical characteristics of polymers:






37. The two types of white blood cells:






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






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






40. Thrombin activates several upstream factors.






41. 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.






42. High conductivity - isotropic - crystalline






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






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






45. ____ are enzymes responsible for protein degradation.






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






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






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






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






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