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






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






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






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






5. ______ Molecular weight degrades slower than lower MW






6. Keloid scars form due to disfunction of ____.






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






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






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






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






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






12. ____ is a measurement that characterizes the breadth of the distribution of a polymer's molecular weight.






13. Activates tissue factors aka endothelial damage






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






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






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






17. List two chemical characteristics of polymers:






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






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






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






21. ____ grafts are derived from the other humans.






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






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






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






25. 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.






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






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






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






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






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






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






32. Higher Molecular weight degrades slower than ____ MW






33. Essentially all metallic biomaterials are ____ - comprised of two or more metals. One of these metals is selected for its ability to support _____ - the formation of a stable oxide layer that resists further corrosion.






34. Cells that don't proliferate (neurons)






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






36. 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?






37. Cells that proliferate rapidly (fibroblasts)






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






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






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






41. ____ are enzymes responsible for protein degradation.






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






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






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






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






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






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






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






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






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