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






2. The two types of white blood cells:






3. 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?






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






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






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






7. Keloid scars forms because disfuntion of






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






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






10. 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.






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






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






13. ____ are enzymes responsible for protein degradation.






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






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






16. Cells that proliferate rapidly (fibroblasts)






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






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






19. This type of feedback creates






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






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






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






23. Activates tissue factors aka endothelial damage






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






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






26. Drawback of micromaching






27. List two chemical characteristics of polymers:






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






29. ____ grafts are derived from the other humans.






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






31. 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.






32. A condensation polymerization results with an ester bond between two reactants and this comes off as a result






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






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






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






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






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






38. Higher Molecular weight degrades slower than ____ MW






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






40. 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.






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






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






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






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






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






46. Cells that don't proliferate (neurons)






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






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






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






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