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. 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.






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






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






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






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






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






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






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






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






10. This type of feedback creates






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






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






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






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






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






16. High conductivity - isotropic - crystalline






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






18. Thrombin activates several upstream factors.






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






20. 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.






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






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






23. 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.






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






25. ______ Molecular weight degrades slower than lower MW






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






27. Cells that don't proliferate (neurons)






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






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






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






31. Mast cells release this






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






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






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






35. Activates tissue factors aka endothelial damage






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






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






38. Keloid scars form due to disfunction of ____.






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






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






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






42. Cells that proliferate rapidly (fibroblasts)






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






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






45. ____ grafts are derived from the other humans.






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






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






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






49. The two types of white blood cells:






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