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






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






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






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






5. ____ are enzymes responsible for protein degradation.






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






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






8. Higher Molecular weight degrades slower than ____ MW






9. High conductivity - isotropic - crystalline






10. This type of feedback creates






11. Keloid scars forms because disfuntion of






12. 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.






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






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






15. List two chemical characteristics of polymers:






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






17. Thrombin activates several upstream factors.






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






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






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






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






22. The two types of white blood cells:






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






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






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






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






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






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






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






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






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






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






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






34. Activates tissue factors aka endothelial damage






35. Mast cells release this






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






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






38. 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.






39. Cells that don't proliferate (neurons)






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






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






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






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






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






45. ______ Molecular weight degrades slower than lower MW






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






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






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






49. 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?






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