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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. Cells that don't proliferate (neurons)

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

3. 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.

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

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

6. Higher Molecular weight degrades slower than ____ MW

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

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

9. This type of feedback creates

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

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

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

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

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

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

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

17. Mast cells release this

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

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

20. 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.

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

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

23. 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?

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

25. Keloid scars forms because disfuntion of

26. Cells that proliferate rapidly (fibroblasts)

27. 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.

28. ____ grafts are derived from the other humans.

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

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

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

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

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

34. Thrombin activates several upstream factors.

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

36. The two types of white blood cells:

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

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

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

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

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

42. The trigger for activation of enzymes (anything but endothelial cells!)

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

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

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

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

47. High conductivity - isotropic - crystalline

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

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

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