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






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






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






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






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






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






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






8. 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.






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






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






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






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






13. Cells that don't proliferate (neurons)






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






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






16. ______ Molecular weight degrades slower than lower MW






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






18. Activates tissue factors aka endothelial damage






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






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






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






22. ____ grafts are derived from the other humans.






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






24. Thrombin activates several upstream factors.






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






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






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






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






29. 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.






30. Higher Molecular weight degrades slower than ____ MW






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






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






33. ____ are enzymes responsible for protein degradation.






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






35. 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?






36. High conductivity - isotropic - crystalline






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






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






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






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






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






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






43. Cells that proliferate rapidly (fibroblasts)






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






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






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






47. Mast cells release this






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






49. List two chemical characteristics of polymers:






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