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. ______ Molecular weight degrades slower than lower MW






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






3. 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.






4. ____ are enzymes responsible for protein degradation.






5. Cells that don't proliferate (neurons)






6. Keloid scars form due to disfunction of ____.






7. Enzyme that really gets the polmerization going!






8. The two types of white blood cells:






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






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






11. Thrombin activates several upstream factors.






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






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






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






15. 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.






16. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






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






22. Drawback of micromaching






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






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






25. ____ grafts are derived from the other humans.






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






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






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






29. Activates tissue factors aka endothelial damage






30. This type of feedback creates






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






32. Keloid scars forms because disfuntion of






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






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






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






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






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






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






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






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






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






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






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






44. List two chemical characteristics of polymers:






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






46. Mast cells release this






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






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






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






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