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. Keloid scars forms because disfuntion of






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






3. Drawback of micromaching






4. ____- are polymers that can be repeatedly softened by heating and hardened by cooling.






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






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






7. High conductivity - isotropic - crystalline






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






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






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






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






12. ____ are enzymes responsible for protein degradation.






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






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






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






16. 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?






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






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






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






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






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






22. List two chemical characteristics of polymers:






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






24. The two types of white blood cells:






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






26. Keloid scars form due to disfunction of ____.






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






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






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






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






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






32. Enzyme that really gets the polmerization going!






33. Cells that proliferate rapidly (fibroblasts)






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






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






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






37. Higher Molecular weight degrades slower than ____ MW






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






39. Deformation that cannot be recovered once the load is removed from the material is ____ deformation.






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






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






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






43. Thrombin activates several upstream factors.






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






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






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






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






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






49. Cells that don't proliferate (neurons)






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