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






2. Higher Molecular weight degrades slower than ____ MW






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






4. Cells that proliferate rapidly (fibroblasts)






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






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






7. The two types of white blood cells:






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






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






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






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






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






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






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






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






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






17. Keloid scars forms because disfuntion of






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






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






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






21. Drawback of micromaching






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






23. 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.






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






25. 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.






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






27. Mast cells release this






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






29. Activates tissue factors aka endothelial damage






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






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






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






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






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






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






36. This type of feedback creates






37. ____ are enzymes responsible for protein degradation.






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






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






40. Cells that don't proliferate (neurons)






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






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






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






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






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






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






47. High conductivity - isotropic - crystalline






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






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






50. ____ grafts are derived from the other humans.