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. Higher Molecular weight degrades slower than ____ MW






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






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






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






5. ______ Molecular weight degrades slower than lower MW






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






7. Enzyme that really gets the polmerization going!






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






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






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






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






12. Thrombin activates several upstream factors.






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






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






15. ____ are enzymes responsible for protein degradation.






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






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






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






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






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






21. List two chemical characteristics of polymers:






22. The two types of white blood cells:






23. 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.






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






25. 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?






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






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






28. Activates tissue factors aka endothelial damage






29. 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.






30. High conductivity - isotropic - crystalline






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






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






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






34. Drawback of micromaching






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






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






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






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






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






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






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






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






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






44. 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.






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






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






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






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






49. This type of feedback creates






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