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. Cells that don't proliferate (neurons)






2. 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.






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






4. Thrombin activates several upstream factors.






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






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






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






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






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






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






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






12. Keloid scars form due to disfunction of ____.






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






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






15. Enzyme that really gets the polmerization going!






16. Drawback of micromaching






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






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






19. Activates tissue factors aka endothelial damage






20. Mast cells release this






21. List two chemical characteristics of polymers:






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






23. Higher Molecular weight degrades slower than ____ MW






24. The two types of white blood cells:






25. This type of feedback creates






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






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






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






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






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






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






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






33. Keloid scars forms because disfuntion of






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






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






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






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






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






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






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






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






42. ____ are enzymes responsible for protein degradation.






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






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






45. 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?






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






47. Cells that proliferate rapidly (fibroblasts)






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






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






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