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






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






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






5. ____ are enzymes responsible for protein degradation.






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






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






8. 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.






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






10. List two chemical characteristics of polymers:






11. Mast cells release this






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






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






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






15. ____ grafts are derived from the other humans.






16. Keloid scars forms because disfuntion of






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






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






19. ______ Molecular weight degrades slower than lower MW






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






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






22. Keloid scars form due to disfunction of ____.






23. This type of feedback creates






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






25. Cells that proliferate rapidly (fibroblasts)






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






27. 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.






28. The two types of white blood cells:






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






30. Cells that don't proliferate (neurons)






31. Higher Molecular weight degrades slower than ____ MW






32. Activates tissue factors aka endothelial damage






33. High conductivity - isotropic - crystalline






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






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






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






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






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






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






40. Enzyme that really gets the polmerization going!






41. Drawback of micromaching






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






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






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






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






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






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






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






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






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