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






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






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






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






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






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






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






8. Higher Molecular weight degrades slower than ____ MW






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






10. High conductivity - isotropic - crystalline






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






12. ____ are enzymes responsible for protein degradation.






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






14. ____ grafts are derived from the other humans.






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






16. ______ Molecular weight degrades slower than lower MW






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






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






19. Keloid scars forms because disfuntion of






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






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






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






23. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






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






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






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






31. List two chemical characteristics of polymers:






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






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






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






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






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






37. This type of feedback creates






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






39. 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?






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






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






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






43. Cells that don't proliferate (neurons)






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






45. Keloid scars form due to disfunction of ____.






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






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. Thrombin activates several upstream factors.






49. 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.






50. Activates tissue factors aka endothelial damage