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Test your basic knowledge |
Bio Engineering
Start Test
Study First
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. Activates tissue factors aka endothelial damage
cross - linking
negative feedback
Damage to cell membranes
Large
2. Process that makes long fibers (fiber drawing) by forcing a fluid through an oriface.
Extrusion
Hemocompatibility
Thrombin
stress
3. Foreign body giants cells are produced by fusion of ___.
Macrophages
Free Radical
Collagenase/Remodelling
photoactive polymers
4. Where are the tissue factors found when they're inactivated
Heparin
cycles
in cytoplasm
Metals
5. A condensation polymerization results with an ester bond between two reactants and this comes off as a result
Plastic
Permanent cells
Water
Thrombin
6. Keloid scars forms because disfuntion of
Polymers - cross linking of polymers
Chemotaxis
photoactive polymers
Collagenase
7. Damaged cells at the site of injury (mast cells) release ___ (glycosaminoglycan).
heparin
Negative Feedback
Enzyme cascade
Water
8. The two types of white blood cells:
Thrombin
neutrophils - macrophages
Amide
Hemophilia
9. ____ grafts are derived from the other humans.
Allogeneic
Permanent - replicate
in cytoplasm
Large
10. The trigger for activation of enzymes (anything but endothelial cells!)
Hemocompatibility
binding
stress
Intermolecular bonding - molecular weight
11. Cells that proliferate slowly over time (aka liver)
hypoxin - angiogenesis
Thrombin
Stable cells
Plastic
12. The process of calibration establishes a quantitative relationship between ____ __ ___ _____ and the direct output of the intstrument (for example time/volume in GPC).
standards of known properties
mast cells
autologous
Allogeneic
13. A molecular pathway in which the product of each reaction catalyzes the subsequent reaction.
phagocytosis
Enzyme cascade
Positive Feedback
Regeneration/Repair
14. _____ establishes a quantitative relationship between measured output values from an instrument and known standards of what is being measured.
photoactive polymers
Chemotaxis
low
Calibration
15. Relative to free radical polymerization - condensation polymerization generally produces polymer of relatively ____ molecular weight.
neutrophils - macrophages
low
Permanent cells
Plastic
16. The calculation of a polymer's molecular weight (weight average and number number average) is based upon values for ____ and ___.
Proteases
heparin
Number of polymers - molecular weight of polymer
micromachining
17. Rather than randomly moving - moves in a directed cell migration manner for specific functions.
Permanent cells
Water
chemotaxis
macrophages - proliferation
18. The fatigue limit is the ___ below which the material can withstand an infinite number of cycles without failure.
heparin
Water - oxygen - metal
Collagenase/Remodelling
stress
19. ______ Molecular weight degrades slower than lower MW
heparin
Thrombin
Higher
Thrombin
20. Keloid scars form due to disfunction of ____.
Amide
mast cells
Permanent cells
Collagenase/Remodelling
21. ____ is a measurement that characterizes the breadth of the distribution of a polymer's molecular weight.
Metals
Endothelial cells
phagocytosis
Polydesperity index
22. Disfunction of _____ (cells) producing collagenase during the _____ phase of wound healing may form Keloid scars.
Negative Feedback
macrophages - proliferation
photoactive polymers
Metals
23. No healing of damage neurons is the result of ____ cells that are not able to ____.
Collagenase
photoactive polymers
Permanent - replicate
Hemophilia
24. Is directed cell migration in response to a concentration gradient of soluble molecules.
Chemotaxis
Number of polymers - molecular weight of polymer
Hemophilia
Have to be in a clean room free of dust and biocontamination - expensive
25. Polyethylene oxide grafting to biomaterials was developed to prevent coagulation by interfering with/preventing ___ ___.
binding
Chemotaxis
stress
Protein Absorption
26. What type of materials are used for photolithography? (substrate is a silicon wafer - built up material is some _____ ____ )
scars
Have to be in a clean room free of dust and biocontamination - expensive
fibrinogen - factor XIII
photoactive polymers
27. The formation of rust due to corrosion in the body is due to the reaction between these 3 things ____ - ____ - and ____ .
Calibration
Collagenase
Water - oxygen - metal
micromachining
28. Addition polymerization is commonly initiated by ___ - atoms that have an unpaired electron.
alloys - passivation
Phagocytosis
free radical
Allogeneic
29. 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.
autologous
Extrusion
Plastic
Endothelial cells
30. Deformation that cannot be recovered once the load is removed from the material is ____ deformation.
Polymers - cross linking of polymers
standards of known properties
Plastic
heparin
31. Higher Molecular weight degrades slower than ____ MW
Permanent - replicate
Collagenase/Remodelling
Lower
Polydesperity index
32. Which of polyermization (condensation/free radical) would you choose to obtain a polymer of high molecular weight?
Free Radical
Endothelial cells
Thrombin
Extrusion
33. What types of wound healing results from injury with inflammation?
Permanent cells
Regeneration/Repair
Free Radical
angiogenesis
34. This cleaves into fibrinogen which creates fibrin (a sticky enzyme that allows blood to clot)
Endothelial cells
Thrombin
Collagenase/Remodelling
Stable cells
35. Collagen ____ is responsible for the gradual gain in mechanical properties of wounded tissue between roughly 4 and 52 weeks post- injury.
Water
cross - linking
Calibration
Higher
36. Vascular endothelial growth factor is produced in response to ___ and stimulates ___.
hypoxin - angiogenesis
Allogeneic
Chemotaxis
stress
37. ____ is the process by which cells involved in inflammation internalize and destroy foreign material.
Phagocytosis
Number of polymers - molecular weight of polymer
Amide
Heparin
38. A ____ implant is designed to elicit specific - intended to host responses.
Bioactive
in cytoplasm
Stress
Damage to cell membranes
39. List two chemical characteristics of polymers:
micromachining
Permanent cells
Intermolecular bonding - molecular weight
Mast - Collagen
40. Thrombin also activates protein C-- which deactivates earlier factors in the cascade is known as ___ ___.
Permanent cells
glassy to rubbery
Negative Feedback
Have to be in a clean room free of dust and biocontamination - expensive
41. Condition in which patients can literally bleed to death.
Stable cells
Hemophilia
Permanent - replicate
fibrinogen - factor XIII
42. Two things needed in the end product of the creation of a scab
Thrombin
hypoxin - angiogenesis
Polymers - cross linking of polymers
Thermoplastics
43. Classify the following polymers into appropriate families based on their bond structure i.e. the polymer is an example of poly ____.
Phagocytosis
Amide
Collagenase/Remodelling
alloys - passivation
44. During granulation stage of proliferation - growth factors that produce this ____(answer)_____ that function in degrading fibrin and replacing it with collagen.
chemotaxis
Thrombin
Proteases
Negative Feedback
45. The glass transition temperature of a poymer at which a polymer transforms from a ____ state to a ___ state.
Permanent - replicate
Chemotaxis
Protein Absorption
glassy to rubbery
46. Process of producing new blood vessels due to a lack on oxygen and thus inducing VEGF.
Macrophages
Damage to cell membranes
angiogenesis
Negative Feedback
47. ____ describes the ability of a device to function appropriately in the presence of blood.
Hemocompatibility
Large
Number of polymers - molecular weight of polymer
Plastic
48. Thrombin activates several upstream factors.
Positive Feedback
Negative Feedback
Heparin
heparin
49. Mast cells release this
fibrinogen - factor XIII
mast cells
alloys - passivation
heparin
50. This type of feedback creates
Damage to cell membranes
phagocytosis
negative feedback
Phagocytosis