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






4. 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?






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






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






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






8. Enzyme that really gets the polmerization going!






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






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






11. Mast cells release this






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






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






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






15. Activates tissue factors aka endothelial damage






16. Cells that proliferate rapidly (fibroblasts)






17. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






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






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






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






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






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






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






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






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






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






31. 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.






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






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






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






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






36. The two types of white blood cells:






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






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






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






40. This type of feedback creates






41. 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.






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






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






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






45. Keloid scars forms because disfuntion of






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






47. List two chemical characteristics of polymers:






48. Thrombin activates several upstream factors.






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






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