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






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






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






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






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






6. Activates tissue factors aka endothelial damage






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






8. ____ grafts are derived from the other humans.






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






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






11. The two types of white blood cells:






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






13. Keloid scars form due to disfunction of ____.






14. Higher Molecular weight degrades slower than ____ MW






15. This type of feedback creates






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






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






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






19. Thrombin activates several upstream factors.






20. List two chemical characteristics of polymers:






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






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






23. Keloid scars forms because disfuntion of






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






25. Essentially all metallic biomaterials are ____ - comprised of two or more metals. One of these metals is selected for its ability to support _____ - the formation of a stable oxide layer that resists further corrosion.






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






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






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






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






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






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






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






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






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






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






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






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






38. 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.






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






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






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






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






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






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






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






46. 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?






47. Drawback of micromaching






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






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






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