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






2. Cells that proliferate rapidly (fibroblasts)






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






4. Enzyme that really gets the polmerization going!






5. ______ Molecular weight degrades slower than lower MW






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






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






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






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






10. Cells that don't proliferate (neurons)






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






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






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






14. Drawback of micromaching






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






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






17. ____ are enzymes responsible for protein degradation.






18. During granulation stage of proliferation - growth factors that produce this ____(answer)_____ that function in degrading fibrin and replacing it with collagen.






19. List two chemical characteristics of polymers:






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






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






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






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






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






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






26. Thrombin activates several upstream factors.






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






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






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






30. 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.






31. Keloid scars forms because disfuntion of






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






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






34. ____ grafts are derived from the other humans.






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






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






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






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






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






40. The two types of white blood cells:






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






42. 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.






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






44. Higher Molecular weight degrades slower than ____ MW






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






46. This type of feedback creates






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






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






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






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







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