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






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






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






4. Mast cells release this






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






6. Keloid scars forms because disfuntion of






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






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






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






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






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






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






13. Keloid scars form due to disfunction of ____.






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






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






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






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






18. Enzyme that really gets the polmerization going!






19. This type of feedback creates






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






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






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






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






24. List two chemical characteristics of polymers:






25. ______ Molecular weight degrades slower than lower MW






26. Cells that don't proliferate (neurons)






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






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






29. 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.






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






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






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






33. Thrombin activates several upstream factors.






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






35. The two types of white blood cells:






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






37. Activates tissue factors aka endothelial damage






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






39. High conductivity - isotropic - crystalline






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






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






42. 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.






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






44. 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.






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






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






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






48. 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?






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






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