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






2. High conductivity - isotropic - crystalline






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






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






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






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






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






9. This type of feedback creates






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






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






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






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






14. Enzyme that really gets the polmerization going!






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






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






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






18. 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.






19. Cells that proliferate rapidly (fibroblasts)






20. Thrombin activates several upstream factors.






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






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






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






24. 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.






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






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






27. ____ grafts are derived from the other humans.






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






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






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






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






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






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






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






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






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






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






38. Cells that don't proliferate (neurons)






39. Drawback of micromaching






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






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






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






43. The two types of white blood cells:






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






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






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






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






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






49. Higher Molecular weight degrades slower than ____ MW






50. Keloid scars form due to disfunction of ____.