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






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






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






4. The two types of white blood cells:






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






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






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






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






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






10. Thrombin activates several upstream factors.






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






12. Keloid scars forms because disfuntion of






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






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






15. This type of feedback creates






16. Enzyme that really gets the polmerization going!






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






18. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






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






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






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






26. Keloid scars form due to disfunction of ____.






27. 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.






28. 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.






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






30. ______ Molecular weight degrades slower than lower MW






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






32. The process of calibration establishes a quantitative relationship between ____ __ ___ _____ and the direct output of the intstrument (for example time/volume in GPC).






33. 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.






34. High conductivity - isotropic - crystalline






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






36. 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?






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






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






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






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






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






42. Drawback of micromaching






43. List two chemical characteristics of polymers:






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






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






46. ____ are enzymes responsible for protein degradation.






47. ____ grafts are derived from the other humans.






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






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






50. Cells that don't proliferate (neurons)