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 types of wound healing results from injury with inflammation?






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






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






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






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






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






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






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






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






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






11. ____ are enzymes responsible for protein degradation.






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






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






14. Drawback of micromaching






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






16. High conductivity - isotropic - crystalline






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






18. Thrombin activates several upstream factors.






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






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






21. 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.






22. Cells that proliferate rapidly (fibroblasts)






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






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






25. Keloid scars form due to disfunction of ____.






26. 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.






27. 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.






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






29. Cells that don't proliferate (neurons)






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






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






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






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






34. The two types of white blood cells:






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






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






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






38. List two chemical characteristics of polymers:






39. Activates tissue factors aka endothelial damage






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






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






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






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






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






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






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






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






48. Enzyme that really gets the polmerization going!






49. Mast cells release this






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