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






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






3. ______ Molecular weight degrades slower than lower MW






4. This type of feedback creates






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






6. Enzyme that really gets the polmerization going!






7. Cells that don't proliferate (neurons)






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






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






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






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






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






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






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






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






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






17. The two types of white blood cells:






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






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






20. List two chemical characteristics of polymers:






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






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






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






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






25. Higher Molecular weight degrades slower than ____ MW






26. You're working on a square polymeric implant of 5cm length and 2mm thick. You've been asked to suggest a precise way to fabricate it - what would you suggest?






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






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






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






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






31. Mast cells release this






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






33. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






38. 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.






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






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






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






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






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






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






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






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






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






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






49. ____ grafts are derived from the other humans.






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