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. ______ Molecular weight degrades slower than lower MW






2. Keloid scars forms because disfuntion of






3. ____ are enzymes responsible for protein degradation.






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






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






6. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






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






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






13. Keloid scars form due to disfunction of ____.






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






15. 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.






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






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






18. High conductivity - isotropic - crystalline






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






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






21. Cells that proliferate slowly over time (aka liver)






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






23. ____ binds to anti- thrombin III (thrombin inhibitor) and increases its potency 1000- fold.






24. Activates tissue factors aka endothelial damage






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






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






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






28. Mast cells release this






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






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






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






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






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






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






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






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






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






38. ____ grafts are derived from the other humans.






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






40. 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?






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






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






43. The two types of white blood cells:






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






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






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






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






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






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






50. Drawback of micromaching