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






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






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






4. 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?






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






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






7. ______ Molecular weight degrades slower than lower MW






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






9. 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.






10. Keloid scars forms because disfuntion of






11. 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.






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






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






14. Mast cells release this






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






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






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






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






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






20. List two chemical characteristics of polymers:






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






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






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






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






25. Higher Molecular weight degrades slower than ____ MW






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






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






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






29. 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.






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






31. Drawback of micromaching






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






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






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






35. ____ grafts are derived from the other humans.






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






37. ____ are enzymes responsible for protein degradation.






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






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






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






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






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






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






44. Cells that don't proliferate (neurons)






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






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






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






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






49. High conductivity - isotropic - crystalline






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