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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. What types of wound healing results from injury with inflammation?
Metals
Regeneration/Repair
fibrinogen - factor XIII
Collagenase/Remodelling
2. The fatigue limit is the ___ below which the material can withstand an infinite number of cycles without failure.
Stable cells
stress
Plastic
photoactive polymers
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.
Hemocompatibility
labile cells
autologous
Mast - Collagen
4. Resulting from the build up of too much collagen at the surface of injury during the granulation tissue stage of proliferation
scars
heparin
neutrophils - macrophages
Hemophilia
5. Drawback of micromaching
Have to be in a clean room free of dust and biocontamination - expensive
Thrombin
Large
Regeneration/Repair
6. Is directed cell migration in response to a concentration gradient of soluble molecules.
Negative Feedback
photoactive polymers
Chemotaxis
Macrophages
7. This cleaves into fibrinogen which creates fibrin (a sticky enzyme that allows blood to clot)
negative feedback
phagocytosis
Thrombin
Polydesperity index
8. A molecular pathway in which the product of each reaction catalyzes the subsequent reaction.
heparin
Enzyme cascade
phagocytosis
standards of known properties
9. ____ describes the ability of a device to function appropriately in the presence of blood.
Calibration
negative feedback
Hemocompatibility
Free Radical
10. During granulation stage of proliferation - growth factors that produce this ____(answer)_____ that function in degrading fibrin and replacing it with collagen.
Heparin
Proteases
Chemotaxis
Intermolecular bonding - molecular weight
11. Thrombin activates several upstream factors.
Positive Feedback
photoactive polymers
Number of polymers - molecular weight of polymer
Thrombin
12. The trigger for activation of enzymes (anything but endothelial cells!)
labile cells
heparin
Stable cells
binding
13. ____- are polymers that can be repeatedly softened by heating and hardened by cooling.
Thermoplastics
Damage to cell membranes
Proteases
phagocytosis
14. The process of calibration establishes a quantitative relationship between ____ __ ___ _____ and the direct output of the intstrument (for example time/volume in GPC).
Plastic
Endothelial cells
phagocytosis
standards of known properties
15. Enzymes (proteins) are not activated only when they are in contact with this type of cells
Bioactive
Extrusion
Endothelial cells
Polymers - cross linking of polymers
16. The two types of white blood cells:
Intermolecular bonding - molecular weight
Polymers - cross linking of polymers
Thrombin
neutrophils - macrophages
17. Enzyme that really gets the polmerization going!
Higher
Intermolecular bonding - molecular weight
Thrombin
angiogenesis
18. The fatigue limit is the ___ below which the material can withstand an infinite number of cycles without failure
Stress
Have to be in a clean room free of dust and biocontamination - expensive
standards of known properties
Proteases
19. Cells that proliferate slowly over time (aka liver)
mast cells
low
labile cells
Stable cells
20. Cell found in the lining of the blood vessels that release heparin and are a part of the negative feedback system.
Lower
mast cells
autologous
standards of known properties
21. Foreign body giants cells are produced by fusion of ___.
Macrophages
Permanent cells
Plastic
macrophages - proliferation
22. The fibrous capsule surrounding a permanent implant is primarily composed of ___ cells and ____ (matrix).
Mast - Collagen
Water - oxygen - metal
macrophages - proliferation
Thrombin
23. ____ is a measurement that characterizes the breadth of the distribution of a polymer's molecular weight.
Compression molding
Lower
Polydesperity index
autologous
24. Cells that don't proliferate (neurons)
free radical
Macrophages
Permanent cells
Water
25. Process that makes long fibers (fiber drawing) by forcing a fluid through an oriface.
Thrombin
Enzyme cascade
Extrusion
Permanent - replicate
26. _____ establishes a quantitative relationship between measured output values from an instrument and known standards of what is being measured.
low
Calibration
Hemophilia
standards of known properties
27. Process of producing new blood vessels due to a lack on oxygen and thus inducing VEGF.
fibrinogen - factor XIII
Chemotaxis
angiogenesis
heparin
28. ____ is the process by which cells involved in inflammation internalize and destroy foreign material.
Phagocytosis
Thrombin
Hemophilia
Protein Absorption
29. The glass transition temperature of a poymer at which a polymer transforms from a ____ state to a ___ state.
mast cells
Endothelial cells
Enzyme cascade
glassy to rubbery
30. List two chemical characteristics of polymers:
Bioactive
labile cells
Damage to cell membranes
Intermolecular bonding - molecular weight
31. Deformation that cannot be recovered once the load is removed from the material is ____ deformation.
Stable cells
Water - oxygen - metal
Lower
Plastic
32. Neutrophils remove bacteria/damaged cell debris from a wound site through the process of ___.
Heparin
Negative Feedback
phagocytosis
heparin
33. Keloid scars forms because disfuntion of
Collagenase
photoactive polymers
Permanent cells
Collagenase/Remodelling
34. ____ grafts are derived from the other humans.
Macrophages
Allogeneic
Collagenase
Compression molding
35. ____ binds to anti- thrombin III (thrombin inhibitor) and increases its potency 1000- fold.
Heparin
Stress
Have to be in a clean room free of dust and biocontamination - expensive
Higher
36. Keloid scars form due to disfunction of ____.
negative feedback
fibrinogen - factor XIII
Collagenase/Remodelling
autologous
37. Addition polymerization is commonly initiated by ___ - atoms that have an unpaired electron.
cross - linking
Phagocytosis
free radical
Water
38. The fatigue limit is value of applied stress below which a material will not fail no matter the number of ____ applied.
cycles
stress
Chemotaxis
Negative Feedback
39. What type of materials are used for photolithography? (substrate is a silicon wafer - built up material is some _____ ____ )
photoactive polymers
Hemocompatibility
binding
Proteases
40. Are polymer additives used to lower glass transition temperature temperature.
Hemocompatibility
Plasticizers
micromachining
Stable cells
41. Activates tissue factors aka endothelial damage
Polymers - cross linking of polymers
Damage to cell membranes
Collagenase/Remodelling
labile cells
42. ____ are enzymes responsible for protein degradation.
labile cells
Proteases
Plasticizers
Thermoplastics
43. Classify the following polymers into appropriate families based on their bond structure i.e. the polymer is an example of poly ____.
standards of known properties
Damage to cell membranes
Amide
heparin
44. A condensation polymerization results with an ester bond between two reactants and this comes off as a result
neutrophils - macrophages
Collagenase
Water
micromachining
45. Damaged cells at the site of injury (mast cells) release ___ (glycosaminoglycan).
heparin
Endothelial cells
Number of polymers - molecular weight of polymer
glassy to rubbery
46. Condition in which patients can literally bleed to death.
Mast - Collagen
Hemophilia
Plastic
Proteases
47. Thrombin also activates protein C-- which deactivates earlier factors in the cascade is known as ___ ___.
Negative Feedback
binding
free radical
Thermoplastics
48. ______ Molecular weight degrades slower than lower MW
Heparin
Higher
Water
fibrinogen - factor XIII
49. Rather than randomly moving - moves in a directed cell migration manner for specific functions.
Collagenase/Remodelling
Amide
chemotaxis
heparin
50. This type of feedback creates
Damage to cell membranes
negative feedback
Permanent - replicate
cross - linking