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






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






3. 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?






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






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






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






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






8. The two types of white blood cells:






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






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






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






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






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






14. High conductivity - isotropic - crystalline






15. List two chemical characteristics of polymers:






16. 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.






17. Thrombin activates several upstream factors.






18. ____ grafts are derived from the other humans.






19. Activates tissue factors aka endothelial damage






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






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






22. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






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






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






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






30. Process of producing new blood vessels due to a lack on oxygen and thus inducing VEGF.






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






32. 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.






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






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






35. Keloid scars form due to disfunction of ____.






36. This type of feedback creates






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






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






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






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






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






42. Cell found in the lining of the blood vessels that release heparin and are a part of the negative feedback system.






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






44. Cells that don't proliferate (neurons)






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






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






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






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






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






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