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






2. This type of feedback creates






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






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






5. High conductivity - isotropic - crystalline






6. Activates tissue factors aka endothelial damage






7. ____ grafts are derived from the other humans.






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






9. Thrombin activates several upstream factors.






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






11. Keloid scars form due to disfunction of ____.






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






13. Cells that don't proliferate (neurons)






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






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






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






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






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






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






20. 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.






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






22. 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?






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






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






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






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






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






28. Mast cells release this






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






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






31. Keloid scars forms because disfuntion of






32. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






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






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






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






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






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






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






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






45. Cells that proliferate rapidly (fibroblasts)






46. 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.






47. Drawback of micromaching






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






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






50. List two chemical characteristics of polymers: