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






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






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






4. This type of feedback creates






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






6. List two chemical characteristics of polymers:






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






8. Drawback of micromaching






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






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






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






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






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






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






15. Cells that don't proliferate (neurons)






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






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






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






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






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






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






22. Cells that proliferate rapidly (fibroblasts)






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






24. Keloid scars forms because disfuntion of






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






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






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






28. 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.






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






30. ____ grafts are derived from the other humans.






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






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






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






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






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






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






37. Keloid scars form due to disfunction of ____.






38. Enzyme that really gets the polmerization going!






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






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






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






42. ______ Molecular weight degrades slower than lower MW






43. High conductivity - isotropic - crystalline






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






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






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






47. 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?






48. 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.






49. 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.






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