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






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






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






5. ______ Molecular weight degrades slower than lower MW






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






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






8. Mast cells release this






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






10. Keloid scars forms because disfuntion of






11. 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.






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






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






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






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






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






17. Higher Molecular weight degrades slower than ____ MW






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






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






20. This type of feedback creates






21. 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.






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






23. Cells that proliferate rapidly (fibroblasts)






24. Activates tissue factors aka endothelial damage






25. Thrombin activates several upstream factors.






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






27. ____ grafts are derived from the other humans.






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






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






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






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






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






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






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






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






36. List two chemical characteristics of polymers:






37. ____ are enzymes responsible for protein degradation.






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






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






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






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






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






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






44. Cells that don't proliferate (neurons)






45. Drawback of micromaching






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






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






48. Keloid scars form due to disfunction of ____.






49. Enzyme that really gets the polmerization going!






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