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






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






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






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






5. Keloid scars form due to disfunction of ____.






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






7. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






12. The two types of white blood cells:






13. Drawback of micromaching






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






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






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






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






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






19. Enzyme that really gets the polmerization going!






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






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






22. Activates tissue factors aka endothelial damage






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






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






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






26. 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.






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






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






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






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






31. ____ are enzymes responsible for protein degradation.






32. Keloid scars forms because disfuntion of






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






34. Mast cells release this






35. 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.






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






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






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






39. This type of feedback creates






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






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






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






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






44. 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.






45. List two chemical characteristics of polymers:






46. Thrombin activates several upstream factors.






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






48. 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?






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






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






Can you answer 50 questions in 15 minutes?



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