Test your basic knowledge |

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. Cells that proliferate rapidly (fibroblasts)






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






3. Enzyme that really gets the polmerization going!






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






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






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






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






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






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






10. 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.






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






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






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






14. This type of feedback creates






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






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






17. Activates tissue factors aka endothelial damage






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






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






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






21. Cells that don't proliferate (neurons)






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






23. ____ grafts are derived from the other humans.






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






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






26. ______ Molecular weight degrades slower than lower MW






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






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






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






30. The two types of white blood cells:






31. Mast cells release this






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






33. Drawback of micromaching






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






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






36. 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?






37. High conductivity - isotropic - crystalline






38. Thrombin activates several upstream factors.






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






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






41. Keloid scars forms because disfuntion of






42. Higher Molecular weight degrades slower than ____ MW






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






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






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






46. List two chemical characteristics of polymers:






47. Keloid scars form due to disfunction of ____.






48. ____ are enzymes responsible for protein degradation.






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






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