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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. Higher Molecular weight degrades slower than ____ MW






2. 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?






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






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






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






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






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






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






9. Keloid scars forms because disfuntion of






10. Mast cells release this






11. ____ are enzymes responsible for protein degradation.






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






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






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






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






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






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






18. Thrombin activates several upstream factors.






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






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






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






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






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






24. Cells that proliferate rapidly (fibroblasts)






25. 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.






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






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






28. Enzyme that really gets the polmerization going!






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






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






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






32. 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.






33. ______ Molecular weight degrades slower than lower MW






34. This type of feedback creates






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






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






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






38. Activates tissue factors aka endothelial damage






39. ____ grafts are derived from the other humans.






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






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






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






43. Drawback of micromaching






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






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






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






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






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






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






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







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Can you answer 50 questions in 15 minutes?


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