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






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






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






5. 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?






6. Cells that don't proliferate (neurons)






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






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






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






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






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






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






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






14. 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.






15. Cells that proliferate rapidly (fibroblasts)






16. ____ are enzymes responsible for protein degradation.






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






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






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






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






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






22. Thrombin activates several upstream factors.






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






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






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






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






27. High conductivity - isotropic - crystalline






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






29. List two chemical characteristics of polymers:






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






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






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






33. 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.






34. Mast cells release this






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






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






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






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






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






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






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






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






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






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






45. Keloid scars form due to disfunction of ____.






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






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






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






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






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