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






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






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






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






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






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






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






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






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






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






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






12. Thrombin activates several upstream factors.






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






14. Enzyme that really gets the polmerization going!






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






16. List two chemical characteristics of polymers:






17. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






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






23. ____ grafts are derived from the other humans.






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






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






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






27. This type of feedback creates






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






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






30. 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.






31. ____ are enzymes responsible for protein degradation.






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






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






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






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






36. 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.






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






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






39. Cells that don't proliferate (neurons)






40. Mast cells release this






41. The two types of white blood cells:






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






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






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






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






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






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






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






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






50. 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.