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. ______ Molecular weight degrades slower than lower MW






2. ____ grafts are derived from the other humans.






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






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






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






6. Cells that proliferate rapidly (fibroblasts)






7. 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.






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






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






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






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






12. Activates tissue factors aka endothelial damage






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






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






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






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






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






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






19. 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.






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






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






22. ____ are enzymes responsible for protein degradation.






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






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






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






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






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






28. Thrombin activates several upstream factors.






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






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






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






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






33. Higher Molecular weight degrades slower than ____ MW






34. Keloid scars form due to disfunction of ____.






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






36. The two types of white blood cells:






37. Enzyme that really gets the polmerization going!






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






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






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






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






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






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






44. Keloid scars forms because disfuntion of






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






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






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






48. Cells that don't proliferate (neurons)






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






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