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. 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?






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






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






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






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






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






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






8. High conductivity - isotropic - crystalline






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






10. Keloid scars forms because disfuntion of






11. 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.






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






13. The two types of white blood cells:






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






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






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






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






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






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






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






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






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






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






24. ____ grafts are derived from the other humans.






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






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






27. Cells that don't proliferate (neurons)






28. This type of feedback creates






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






30. 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.






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






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






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






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






35. Thrombin activates several upstream factors.






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






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






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






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






40. Cells that proliferate rapidly (fibroblasts)






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






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






43. ____ are enzymes responsible for protein degradation.






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






45. List two chemical characteristics of polymers:






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






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






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






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






50. Keloid scars form due to disfunction of ____.