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






2. 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.






3. List two chemical characteristics of polymers:






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






5. High conductivity - isotropic - crystalline






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






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






8. Mast cells release this






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






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






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






12. ____ are enzymes responsible for protein degradation.






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






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






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






16. ______ Molecular weight degrades slower than lower MW






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






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






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






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






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






22. The two types of white blood cells:






23. This type of feedback creates






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






25. ____ grafts are derived from the other humans.






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






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






28. 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.






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






30. Keloid scars form due to disfunction of ____.






31. Activates tissue factors aka endothelial damage






32. 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.






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






34. Cells that don't proliferate (neurons)






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






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






37. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






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






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






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






45. Drawback of micromaching






46. Keloid scars forms because disfuntion of






47. Enzyme that really gets the polmerization going!






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






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






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