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






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






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






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






5. Enzyme that really gets the polmerization going!






6. This type of feedback creates






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






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






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






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






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






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






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






14. High conductivity - isotropic - crystalline






15. Thrombin activates several upstream factors.






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






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






18. Higher Molecular weight degrades slower than ____ MW






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






20. Mast cells release this






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






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






23. The two types of white blood cells:






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






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






26. 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?






27. ____ are enzymes responsible for protein degradation.






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






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






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






31. ____ grafts are derived from the other humans.






32. Drawback of micromaching






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






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






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






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






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






38. List two chemical characteristics of polymers:






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






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






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






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






43. ______ Molecular weight degrades slower than lower MW






44. Cells that proliferate rapidly (fibroblasts)






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






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






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






48. Keloid scars form due to disfunction of ____.






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






50. 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.