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. High conductivity - isotropic - crystalline






2. Keloid scars forms because disfuntion of






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






4. Keloid scars form due to disfunction of ____.






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






6. Cells that don't proliferate (neurons)






7. This type of feedback creates






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






9. Activates tissue factors aka endothelial damage






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






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






12. 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.






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






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






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






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






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






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






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






20. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






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






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






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






28. List two chemical characteristics of polymers:






29. Cells that proliferate rapidly (fibroblasts)






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






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






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






33. ____ are enzymes responsible for protein degradation.






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






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






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






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






38. Enzyme that really gets the polmerization going!






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






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






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






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






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






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






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






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






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






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






49. 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.






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