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. Thrombin activates several upstream factors.






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






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






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






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






6. Higher Molecular weight degrades slower than ____ MW






7. ____ grafts are derived from the other humans.






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






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






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






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






12. ______ Molecular weight degrades slower than lower MW






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






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






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






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






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






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






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






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






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






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






23. Cells that don't proliferate (neurons)






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






25. ____ are enzymes responsible for protein degradation.






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






27. This type of feedback creates






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






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






30. 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?






31. Cells that proliferate rapidly (fibroblasts)






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






33. Enzyme that really gets the polmerization going!






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






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






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






37. List two chemical characteristics of polymers:






38. Keloid scars form due to disfunction of ____.






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






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






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






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






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






44. Drawback of micromaching






45. Activates tissue factors aka endothelial damage






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






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






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






49. 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.






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