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






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






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






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






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






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






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






8. Drawback of micromaching






9. 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.






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






11. ____ grafts are derived from the other humans.






12. ____ are enzymes responsible for protein degradation.






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






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






15. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






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. Cells that proliferate slowly over time (aka liver)






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






23. Cells that don't proliferate (neurons)






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






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






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






27. 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?






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






29. Keloid scars forms because disfuntion of






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






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






32. Thrombin activates several upstream factors.






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






34. 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.






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






36. Activates tissue factors aka endothelial damage






37. Enzyme that really gets the polmerization going!






38. List two chemical characteristics of polymers:






39. Keloid scars form due to disfunction of ____.






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






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






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






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






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






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






46. High conductivity - isotropic - crystalline






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






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






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






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