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






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






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






4. Activates tissue factors aka endothelial damage






5. Higher Molecular weight degrades slower than ____ MW






6. Enzyme that really gets the polmerization going!






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






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






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






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






11. 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.






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






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






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






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






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






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






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






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






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






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






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






23. Thrombin activates several upstream factors.






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






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






26. ____ are enzymes responsible for protein degradation.






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






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






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






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






31. 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.






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






33. 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.






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






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






36. Keloid scars forms because disfuntion of






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






38. Keloid scars form due to disfunction of ____.






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






40. The two types of white blood cells:






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






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






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






44. ____ grafts are derived from the other humans.






45. Cells that proliferate rapidly (fibroblasts)






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






47. Cells that don't proliferate (neurons)






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






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






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