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. Condition in which patients can literally bleed to death.






2. ____ grafts are derived from the other humans.






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






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






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






6. 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.






7. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






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






13. Enzyme that really gets the polmerization going!






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






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






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






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






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






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






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






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






22. Cells that proliferate rapidly (fibroblasts)






23. Cells that don't proliferate (neurons)






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






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






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






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






28. Mast cells release this






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






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






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






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






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






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






35. List two chemical characteristics of polymers:






36. ____ are enzymes responsible for protein degradation.






37. Keloid scars form due to disfunction of ____.






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






39. High conductivity - isotropic - crystalline






40. 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?






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






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






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






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






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






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






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






48. 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.






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






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