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






2. 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?






3. ____ are enzymes responsible for protein degradation.






4. Enzyme that really gets the polmerization going!






5. 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.






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






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






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






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






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






11. Cells that don't proliferate (neurons)






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






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






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






15. Drawback of micromaching






16. The two types of white blood cells:






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






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






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






20. High conductivity - isotropic - crystalline






21. Cells that proliferate rapidly (fibroblasts)






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






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






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






25. Higher Molecular weight degrades slower than ____ MW






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






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






28. ____ grafts are derived from the other humans.






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






30. 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.






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






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






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






34. List two chemical characteristics of polymers:






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






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






37. Thrombin activates several upstream factors.






38. 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.






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






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






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






42. Keloid scars form due to disfunction of ____.






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






44. ______ Molecular weight degrades slower than lower MW






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






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






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






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






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






50. Keloid scars forms because disfuntion of