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






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






3. ______ Molecular weight degrades slower than lower MW






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






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






6. The two types of white blood cells:






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






8. 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?






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






10. Higher Molecular weight degrades slower than ____ MW






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






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






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






14. Keloid scars form due to disfunction of ____.






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






16. Cells that don't proliferate (neurons)






17. 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.






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






19. Thrombin activates several upstream factors.






20. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






25. Activates tissue factors aka endothelial damage






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






27. List two chemical characteristics of polymers:






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






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






30. ____ grafts are derived from the other humans.






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






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






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






34. 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.






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






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






37. Enzyme that really gets the polmerization going!






38. 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.






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






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






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






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






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






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






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






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






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






48. High conductivity - isotropic - crystalline






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






50. Keloid scars forms because disfuntion of