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






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






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






4. The two types of white blood cells:






5. High conductivity - isotropic - crystalline






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






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






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






9. List two chemical characteristics of polymers:






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






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






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






13. ____ grafts are derived from the other humans.






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






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






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






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






18. 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?






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






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






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






22. Cells that don't proliferate (neurons)






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






24. ____ are enzymes responsible for protein degradation.






25. This type of feedback creates






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






27. 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.






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






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






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






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






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






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






34. Activates tissue factors aka endothelial damage






35. Cells that proliferate rapidly (fibroblasts)






36. Keloid scars form due to disfunction of ____.






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






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






39. Mast cells release this






40. Keloid scars forms because disfuntion of






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






42. 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.






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






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






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






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






47. 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.






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






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






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