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. ____ are enzymes responsible for protein degradation.






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






3. Drawback of micromaching






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






5. Keloid scars forms because disfuntion of






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






21. List two chemical characteristics of polymers:






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






23. ____ grafts are derived from the other humans.






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






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






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






27. ______ Molecular weight degrades slower than lower MW






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






29. The two types of white blood cells:






30. 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?






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






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






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






34. 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.






35. Enzyme that really gets the polmerization going!






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






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






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






39. Cells that don't proliferate (neurons)






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






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






42. 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.






43. Activates tissue factors aka endothelial damage






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






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






46. Cells that proliferate rapidly (fibroblasts)






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






48. Mast cells release this






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






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