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






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






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






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






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






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






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






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






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






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






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






12. High conductivity - isotropic - crystalline






13. Keloid scars forms because disfuntion of






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






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






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






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






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






19. Mast cells release this






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






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






22. ____ are enzymes responsible for protein degradation.






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






24. Activates tissue factors aka endothelial damage






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






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






27. Cells that don't proliferate (neurons)






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






29. The two types of white blood cells:






30. 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.






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






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






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






34. Keloid scars form due to disfunction of ____.






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






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






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






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






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






40. 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.






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






42. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






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






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






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






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