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 rapidly (fibroblasts)






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






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






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






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






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






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






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






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






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






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






12. Drawback of micromaching






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






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






15. Activates tissue factors aka endothelial damage






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






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






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






19. 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.






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






21. Thrombin activates several upstream factors.






22. Cells that don't proliferate (neurons)






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






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






25. 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.






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






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






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






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






30. High conductivity - isotropic - crystalline






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






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






33. ____ are enzymes responsible for protein degradation.






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






35. The two types of white blood cells:






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






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






38. ____ grafts are derived from the other humans.






39. 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?






40. Higher Molecular weight degrades slower than ____ MW






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






42. List two chemical characteristics of polymers:






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






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






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






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






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






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






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






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