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






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






3. High conductivity - isotropic - crystalline






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






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






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






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






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






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






10. 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?






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






12. 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.






13. List two chemical characteristics of polymers:






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






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






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






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






18. Thrombin activates several upstream factors.






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






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






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






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






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






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






25. Drawback of micromaching






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






27. Keloid scars form due to disfunction of ____.






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






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






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






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






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






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






34. 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.






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






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






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






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






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






40. ____ are enzymes responsible for protein degradation.






41. This type of feedback creates






42. Higher Molecular weight degrades slower than ____ MW






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






44. 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.






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






46. Mast cells release this






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






48. Cells that proliferate rapidly (fibroblasts)






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






50. ____ grafts are derived from the other humans.