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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. ____ are enzymes responsible for protein degradation.






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






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






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






5. Activates tissue factors aka endothelial damage






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






7. Keloid scars form due to disfunction of ____.






8. Higher Molecular weight degrades slower than ____ MW






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






10. 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.






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






12. This type of feedback creates






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






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






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






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






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






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






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






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






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






22. A ____ implant is designed to elicit specific - intended to host responses.






23. Enzyme that really gets the polmerization going!






24. Keloid scars forms because disfuntion of






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






26. Cells that proliferate rapidly (fibroblasts)






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






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






29. Thrombin activates several upstream factors.






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






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






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






33. Drawback of micromaching






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






35. 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.






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






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






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






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






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






42. High conductivity - isotropic - crystalline






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






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






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






46. Mast cells release this






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






48. Cells that don't proliferate (neurons)






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






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







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