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






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






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






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






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






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






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






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






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






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






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






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






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






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






15. 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.






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






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






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






19. 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.






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






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






22. Mast cells release this






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






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






25. Keloid scars form due to disfunction of ____.






26. Keloid scars forms because disfuntion of






27. Thrombin activates several upstream factors.






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






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






30. High conductivity - isotropic - crystalline






31. Cells that proliferate rapidly (fibroblasts)






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






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






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






35. Higher Molecular weight degrades slower than ____ MW






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






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






38. ____ grafts are derived from the other humans.






39. ______ Molecular weight degrades slower than lower MW






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






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






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






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






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






45. Activates tissue factors aka endothelial damage






46. Enzyme that really gets the polmerization going!






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






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






49. 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.






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