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. Thrombin activates several upstream factors.






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






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






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






5. Cells that proliferate rapidly (fibroblasts)






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






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






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






9. Enzyme that really gets the polmerization going!






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






11. ____ grafts are derived from the other humans.






12. 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.






13. Keloid scars form due to disfunction of ____.






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






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






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






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






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






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






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






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






22. 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.






23. The two types of white blood cells:






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






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






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






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






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






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






30. Keloid scars forms because disfuntion of






31. ______ Molecular weight degrades slower than lower MW






32. Drawback of micromaching






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






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






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






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






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






38. List two chemical characteristics of polymers:






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






40. Mast cells release this






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






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






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






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






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






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






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






48. High conductivity - isotropic - crystalline






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






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