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






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






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






5. The two types of white blood cells:






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






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






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






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






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






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






12. What types of wound healing results from injury with inflammation?






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






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






15. Cells that proliferate rapidly (fibroblasts)






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






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






18. Activates tissue factors aka endothelial damage






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






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






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






22. This type of feedback creates






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






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






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






26. Keloid scars form due to disfunction of ____.






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






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






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






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






31. List two chemical characteristics of polymers:






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






33. 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?






34. ______ Molecular weight degrades slower than lower MW






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






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






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






38. 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.






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






40. 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.






41. Mast cells release this






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






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






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






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






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






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






48. Higher Molecular weight degrades slower than ____ MW






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






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