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Bio Engineering

Subject : engineering
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. The trigger for activation of enzymes (anything but endothelial cells!)

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

3. Mast cells release this

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

5. Higher Molecular weight degrades slower than ____ MW

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

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

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

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

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

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

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

13. Keloid scars forms because disfuntion of

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

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

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

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

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

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

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

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

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

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

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

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

26. ______ Molecular weight degrades slower than lower MW

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

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

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

30. ____ grafts are derived from the other humans.

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

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

33. High conductivity - isotropic - crystalline

34. This type of feedback creates

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

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

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

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

39. ____ are enzymes responsible for protein degradation.

40. Keloid scars form due to disfunction of ____.

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

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

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

44. Cells that proliferate rapidly (fibroblasts)

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

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

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

48. Thrombin activates several upstream factors.

49. Enzyme that really gets the polmerization going!

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