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. This type of feedback creates






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






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






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






5. Cells that proliferate rapidly (fibroblasts)






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






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






8. ____ are enzymes responsible for protein degradation.






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






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






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






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






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






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






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






16. ____ grafts are derived from the other humans.






17. High conductivity - isotropic - crystalline






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






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






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






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






22. ______ Molecular weight degrades slower than lower MW






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






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






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






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






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






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






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






30. 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.






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






32. Mast cells release this






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






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






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






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






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






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






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






40. 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?






41. 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.






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






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






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






45. The two types of white blood cells:






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






47. Keloid scars forms because disfuntion of






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






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






50. List two chemical characteristics of polymers: