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. The two types of white blood cells:






2. Thrombin activates several upstream factors.






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






4. Cells that proliferate rapidly (fibroblasts)






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






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






7. Mast cells release this






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






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






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






11. Keloid scars form due to disfunction of ____.






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






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






14. Enzyme that really gets the polmerization going!






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






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






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






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






19. 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?






20. ______ Molecular weight degrades slower than lower MW






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






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






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






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






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






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






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






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






29. Cells that don't proliferate (neurons)






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






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






32. Drawback of micromaching






33. Keloid scars forms because disfuntion of






34. Higher Molecular weight degrades slower than ____ MW






35. List two chemical characteristics of polymers:






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






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






38. Activates tissue factors aka endothelial damage






39. This type of feedback creates






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






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






42. 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.






43. ____ are enzymes responsible for protein degradation.






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






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






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






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






48. ____ grafts are derived from the other humans.






49. 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.






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