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. 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.






2. List two chemical characteristics of polymers:






3. Drawback of micromaching






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






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






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






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






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






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






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






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






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






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






14. This type of feedback creates






15. 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.






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






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






18. Enzyme that really gets the polmerization going!






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






20. 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.






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






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






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






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






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






26. Mast cells release this






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






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






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






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






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






32. Keloid scars form due to disfunction of ____.






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






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






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






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






37. Cells that don't proliferate (neurons)






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






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






40. 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?






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






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






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






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






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






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






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






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






49. Activates tissue factors aka endothelial damage






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