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






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






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






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






5. Activates tissue factors aka endothelial damage






6. 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.






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






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






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






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






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






12. Keloid scars forms because disfuntion of






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






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






15. This type of feedback creates






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






17. The two types of white blood cells:






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






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






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






21. Thrombin activates several upstream factors.






22. List two chemical characteristics of polymers:






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






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






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






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






27. Mast cells release this






28. 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.






29. 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?






30. Drawback of micromaching






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






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






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






34. Higher Molecular weight degrades slower than ____ MW






35. Deformation that cannot be recovered once the load is removed from the material is ____ deformation.






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






37. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






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






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






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






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






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






47. ______ Molecular weight degrades slower than lower MW






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






49. Keloid scars form due to disfunction of ____.






50. ____ grafts are derived from the other humans.







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