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. The two types of white blood cells:






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






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






4. Cells that don't proliferate (neurons)






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






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






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






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






9. This type of feedback creates






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






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






12. 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?






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






14. Mast cells release this






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






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






17. Cells that proliferate rapidly (fibroblasts)






18. Higher Molecular weight degrades slower than ____ MW






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






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






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






22. ____ are enzymes responsible for protein degradation.






23. List two chemical characteristics of polymers:






24. ______ Molecular weight degrades slower than lower MW






25. High conductivity - isotropic - crystalline






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






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






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






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






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






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






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






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






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






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






36. 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.






37. ____ grafts are derived from the other humans.






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






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






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






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






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






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






44. Keloid scars forms because disfuntion of






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






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






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






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






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






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