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. Mast cells release this






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






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






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






5. 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?






6. Thrombin activates several upstream factors.






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






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






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






10. Cells that don't proliferate (neurons)






11. High conductivity - isotropic - crystalline






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






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






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






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






16. ____ grafts are derived from the other humans.






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






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






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






20. Cells that proliferate rapidly (fibroblasts)






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






22. Higher Molecular weight degrades slower than ____ MW






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






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






25. The two types of white blood cells:






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






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






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






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






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






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






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






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






34. ____ are enzymes responsible for protein degradation.






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






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






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






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






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






40. 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.






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






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






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






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






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






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






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






48. List two chemical characteristics of polymers:






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






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