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






2. Mast cells release this






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






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






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






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






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






8. The two types of white blood cells:






9. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






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






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






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






17. 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?






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






19. High conductivity - isotropic - crystalline






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






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






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






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






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






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






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






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






28. 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.






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






30. Thrombin activates several upstream factors.






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






32. Higher Molecular weight degrades slower than ____ MW






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






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






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






36. Activates tissue factors aka endothelial damage






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






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






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






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






41. Enzyme that really gets the polmerization going!






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






43. Cells that don't proliferate (neurons)






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






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






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






47. 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.






48. ______ Molecular weight degrades slower than lower MW






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






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