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






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






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






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






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






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






7. Cells that don't proliferate (neurons)






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






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






10. Enzyme that really gets the polmerization going!






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






12. ______ Molecular weight degrades slower than lower MW






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






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






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






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






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






18. 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?






19. Drawback of micromaching






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






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






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






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






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






25. Keloid scars form due to disfunction of ____.






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






27. 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.






28. Higher Molecular weight degrades slower than ____ MW






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






30. High conductivity - isotropic - crystalline






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






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






33. 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.






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






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






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






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






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






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






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






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






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






43. This type of feedback creates






44. ____ grafts are derived from the other humans.






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






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






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






48. Thrombin activates several upstream factors.






49. The two types of white blood cells:






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