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 slowly over time (aka liver)






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






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






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






5. 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.






6. ______ Molecular weight degrades slower than lower MW






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






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






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






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






11. The two types of white blood cells:






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






13. List two chemical characteristics of polymers:






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






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






16. Enzyme that really gets the polmerization going!






17. ____ are enzymes responsible for protein degradation.






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






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






20. High conductivity - isotropic - crystalline






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






22. 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.






23. Cells that proliferate rapidly (fibroblasts)






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






25. ____ grafts are derived from the other humans.






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






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






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






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






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






31. Higher Molecular weight degrades slower than ____ MW






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






33. Cells that don't proliferate (neurons)






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






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






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






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






38. Thrombin activates several upstream factors.






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






40. Keloid scars form due to disfunction of ____.






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






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






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






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






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






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






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






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






49. Keloid scars forms because disfuntion of






50. 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?