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






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






3. List two chemical characteristics of polymers:






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






5. Cells that proliferate rapidly (fibroblasts)






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






7. The two types of white blood cells:






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






9. Activates tissue factors aka endothelial damage






10. Keloid scars form due to disfunction of ____.






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






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






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






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






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






16. ______ Molecular weight degrades slower than lower MW






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






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






19. Drawback of micromaching






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






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






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






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






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






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






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






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






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






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






30. Higher Molecular weight degrades slower than ____ MW






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






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






33. Keloid scars forms because disfuntion of






34. Cells that don't proliferate (neurons)






35. Thrombin activates several upstream factors.






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






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






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






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






40. This type of feedback creates






41. ____ are enzymes responsible for protein degradation.






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






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






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






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






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






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






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






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






50. Mast cells release this







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