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






2. 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.






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






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






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






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






7. Enzyme that really gets the polmerization going!






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






9. 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.






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






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






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






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






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






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






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






17. Cells that proliferate rapidly (fibroblasts)






18. List two chemical characteristics of polymers:






19. Higher Molecular weight degrades slower than ____ MW






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






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






22. High conductivity - isotropic - crystalline






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






24. Cells that don't proliferate (neurons)






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






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






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






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






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






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






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






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






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






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






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






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






37. Keloid scars form due to disfunction of ____.






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






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






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






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






43. ____ are enzymes responsible for protein degradation.






44. ______ Molecular weight degrades slower than lower MW






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






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






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






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






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






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