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






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






3. ______ Molecular weight degrades slower than lower MW






4. Keloid scars form due to disfunction of ____.






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






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






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






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






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






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






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






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






13. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






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






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






20. List two chemical characteristics of polymers:






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






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






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






24. High conductivity - isotropic - crystalline






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






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






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






28. Enzyme that really gets the polmerization going!






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






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






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






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






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






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






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






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






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






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






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






40. Thrombin activates several upstream factors.






41. 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?






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






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






44. 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.






45. ____ grafts are derived from the other humans.






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






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






48. ____ are enzymes responsible for protein degradation.






49. Drawback of micromaching






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