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






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






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






4. 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.






5. ______ Molecular weight degrades slower than lower MW






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






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






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






9. Cells that proliferate rapidly (fibroblasts)






10. 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.






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






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






13. High conductivity - isotropic - crystalline






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






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






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






17. Keloid scars forms because disfuntion of






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






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






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






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






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






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






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






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






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






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






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






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






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






31. Higher Molecular weight degrades slower than ____ MW






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






33. List two chemical characteristics of polymers:






34. The two types of white blood cells:






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






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






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






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






39. ____ grafts are derived from the other humans.






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






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






42. Mast cells release this






43. 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.






44. In order to produce a blood clot - thrombin cleaves/activates ____ and ____.






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






46. Keloid scars form due to disfunction of ____.






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






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






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






50. This type of feedback creates