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






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






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






4. Mast cells release this






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






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






7. ______ Molecular weight degrades slower than lower MW






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






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






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






11. The two types of white blood cells:






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






13. This type of feedback creates






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






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






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






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






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






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






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






21. 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.






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






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






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






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






26. Keloid scars form due to disfunction of ____.






27. ____ grafts are derived from the other humans.






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






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






30. Enzyme that really gets the polmerization going!






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






32. Cells that proliferate rapidly (fibroblasts)






33. Drawback of micromaching






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






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






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






37. ____ are enzymes responsible for protein degradation.






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






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






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






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






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






43. List two chemical characteristics of polymers:






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






45. Keloid scars forms because disfuntion of






46. Cells that don't proliferate (neurons)






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






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






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






50. 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.