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






2. Thrombin activates several upstream factors.






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






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






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






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






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






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






9. 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.






10. ____ are enzymes responsible for protein degradation.






11. Mast cells release this






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






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






14. 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?






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






16. 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.






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






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






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






20. List two chemical characteristics of polymers:






21. Activates tissue factors aka endothelial damage






22. ____ grafts are derived from the other humans.






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






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






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






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






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






28. Enzyme that really gets the polmerization going!






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






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






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






32. The two types of white blood cells:






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






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






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






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






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






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






39. Cells that don't proliferate (neurons)






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






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






42. Keloid scars forms because disfuntion of






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






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






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






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






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






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






49. High conductivity - isotropic - crystalline






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