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






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






3. 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?






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






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






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






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






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






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






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






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






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






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






14. 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.






15. Higher Molecular weight degrades slower than ____ MW






16. ____ are enzymes responsible for protein degradation.






17. The two types of white blood cells:






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






19. ______ Molecular weight degrades slower than lower MW






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






21. This type of feedback creates






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






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






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






25. Keloid scars form due to disfunction of ____.






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






27. Cells that proliferate rapidly (fibroblasts)






28. High conductivity - isotropic - crystalline






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






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






31. List two chemical characteristics of polymers:






32. ____ grafts are derived from the other humans.






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






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






35. Activates tissue factors aka endothelial damage






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






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






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






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






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






41. 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.






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






43. Drawback of micromaching






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






45. Keloid scars forms because disfuntion of






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






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






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






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






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