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






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






3. List two chemical characteristics of polymers:






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






5. Cells that don't proliferate (neurons)






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






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






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






9. Drawback of micromaching






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






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






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






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






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






15. 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.






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






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






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






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






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






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






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






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






24. Keloid scars forms because disfuntion of






25. High conductivity - isotropic - crystalline






26. Cells that proliferate rapidly (fibroblasts)






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






28. Keloid scars form due to disfunction of ____.






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






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






31. 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?






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






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






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






35. Activates tissue factors aka endothelial damage






36. Thrombin activates several upstream factors.






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






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






39. The two types of white blood cells:






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






41. Higher Molecular weight degrades slower than ____ MW






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






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






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






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






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






47. Mast cells release this






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






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






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