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






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






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






4. 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.






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






6. ____ grafts are derived from the other humans.






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






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






9. Cells that proliferate rapidly (fibroblasts)






10. Thrombin activates several upstream factors.






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






12. This type of feedback creates






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






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






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






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






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






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






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






20. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






25. Drawback of micromaching






26. Keloid scars forms because disfuntion of






27. Mast cells release this






28. List two chemical characteristics of polymers:






29. ____ are enzymes responsible for protein degradation.






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






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






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






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






34. 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?






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






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






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






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






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






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






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






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






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






44. 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.






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






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






47. Enzyme that really gets the polmerization going!






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






49. ______ Molecular weight degrades slower than lower MW






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