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. 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.






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






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






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






5. Drawback of micromaching






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






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






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






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






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






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






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






13. Higher Molecular weight degrades slower than ____ MW






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






15. ____ are enzymes responsible for protein degradation.






16. The two types of white blood cells:






17. Keloid scars form due to disfunction of ____.






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






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






20. Enzyme that really gets the polmerization going!






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






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






23. Activates tissue factors aka endothelial damage






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






25. 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.






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






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






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






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






30. ______ Molecular weight degrades slower than lower MW






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






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






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






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






35. High conductivity - isotropic - crystalline






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






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






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






39. Mast cells release this






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






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






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






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






44. Cells that proliferate rapidly (fibroblasts)






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






46. Thrombin activates several upstream factors.






47. 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?






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






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






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