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. Higher Molecular weight degrades slower than ____ MW






2. 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.






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






4. ____ are enzymes responsible for protein degradation.






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






6. High conductivity - isotropic - crystalline






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






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






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






10. Mast cells release this






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






12. 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?






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






14. 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.






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






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






17. Cells that proliferate rapidly (fibroblasts)






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






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






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






21. Drawback of micromaching






22. List two chemical characteristics of polymers:






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






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






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






26. Activates tissue factors aka endothelial damage






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






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






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






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






31. 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.






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






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






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






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






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






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






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






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






40. Cells that don't proliferate (neurons)






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






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






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






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






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






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






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






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






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






50. Keloid scars forms because disfuntion of