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






2. List two chemical characteristics of polymers:






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






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






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






6. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






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






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






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






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






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






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






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






18. ____ are enzymes responsible for protein degradation.






19. Cells that don't proliferate (neurons)






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






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






22. 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?






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






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






25. High conductivity - isotropic - crystalline






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






27. During granulation stage of proliferation - growth factors that produce this ____(answer)_____ that function in degrading fibrin and replacing it with collagen.






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. This type of feedback creates






30. Enzyme that really gets the polmerization going!






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






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






33. The two types of white blood cells:






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






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






36. ____ grafts are derived from the other humans.






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






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






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






40. Activates tissue factors aka endothelial damage






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






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






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






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






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






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






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






48. Drawback of micromaching






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






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