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






2. ______ Molecular weight degrades slower than lower MW






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






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






5. Drawback of micromaching






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






7. Cells that don't proliferate (neurons)






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






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






10. 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?






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. Activates tissue factors aka endothelial damage






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






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






15. Process that makes long fibers (fiber drawing) by forcing a fluid through an oriface.






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






17. Keloid scars forms because disfuntion of






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






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






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






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






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






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






24. The two types of white blood cells:






25. Keloid scars form due to disfunction of ____.






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






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






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






29. Enzyme that really gets the polmerization going!






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






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






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






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






34. Mast cells release this






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






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






37. High conductivity - isotropic - crystalline






38. List two chemical characteristics of polymers:






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






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






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






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






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






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






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






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






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






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






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






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