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






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






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






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






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






6. Cells that don't proliferate (neurons)






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






8. 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.






9. 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.






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






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






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






13. Higher Molecular weight degrades slower than ____ MW






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






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






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






17. High conductivity - isotropic - crystalline






18. Cells that proliferate rapidly (fibroblasts)






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






20. Keloid scars form due to disfunction of ____.






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






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






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






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






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






26. 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.






27. ____ grafts are derived from the other humans.






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






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






30. Keloid scars forms because disfuntion of






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






32. The two types of white blood cells:






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






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






35. Thrombin activates several upstream factors.






36. Thrombin also activates protein C-- which deactivates earlier factors in the cascade is known as ___ ___.






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






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






39. ____ are enzymes responsible for protein degradation.






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






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






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






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






44. ______ Molecular weight degrades slower than lower MW






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






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






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






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






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






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