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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. The fatigue limit is the ___ below which the material can withstand an infinite number of cycles without failure.
Chemotaxis
Extrusion
stress
chemotaxis
2. Cells that proliferate rapidly (fibroblasts)
Heparin
autologous
labile cells
Endothelial cells
3. No healing of damage neurons is the result of ____ cells that are not able to ____.
Extrusion
Permanent - replicate
negative feedback
Calibration
4. What types of wound healing results from injury with inflammation?
Free Radical
Regeneration/Repair
alloys - passivation
Polymers - cross linking of polymers
5. Rather than randomly moving - moves in a directed cell migration manner for specific functions.
autologous
stress
chemotaxis
fibrinogen - factor XIII
6. Is directed cell migration in response to a concentration gradient of soluble molecules.
Compression molding
Calibration
Chemotaxis
Hemophilia
7. Cell found in the lining of the blood vessels that release heparin and are a part of the negative feedback system.
mast cells
Polymers - cross linking of polymers
Chemotaxis
Hemocompatibility
8. Process of producing new blood vessels due to a lack on oxygen and thus inducing VEGF.
Mast - Collagen
Proteases
Amide
angiogenesis
9. List two chemical characteristics of polymers:
Hemophilia
Chemotaxis
Allogeneic
Intermolecular bonding - molecular weight
10. ____ is the process by which cells involved in inflammation internalize and destroy foreign material.
Proteases
cross - linking
Calibration
Phagocytosis
11. Damaged cells at the site of injury (mast cells) release ___ (glycosaminoglycan).
heparin
Stress
Calibration
Have to be in a clean room free of dust and biocontamination - expensive
12. Two things needed in the end product of the creation of a scab
Polymers - cross linking of polymers
Thermoplastics
Plastic
Thrombin
13. ____ grafts are derived from the other humans.
binding
Allogeneic
Protein Absorption
Thermoplastics
14. ______ Molecular weight degrades slower than lower MW
Collagenase/Remodelling
Permanent - replicate
Lower
Higher
15. Keloid scars form due to disfunction of ____.
Large
Collagenase/Remodelling
Metals
binding
16. Condition in which patients can literally bleed to death.
negative feedback
Plastic
labile cells
Hemophilia
17. What type of materials are used for photolithography? (substrate is a silicon wafer - built up material is some _____ ____ )
photoactive polymers
Intermolecular bonding - molecular weight
Metals
binding
18. Mast cells release this
Large
Plastic
heparin
Polydesperity index
19. _____ establishes a quantitative relationship between measured output values from an instrument and known standards of what is being measured.
Chemotaxis
Lower
Calibration
stress
20. In order to produce a blood clot - thrombin cleaves/activates ____ and ____.
Bioactive
fibrinogen - factor XIII
Large
Chemotaxis
21. A molecular pathway in which the product of each reaction catalyzes the subsequent reaction.
Calibration
Enzyme cascade
Thrombin
Thrombin
22. Collagen ____ is responsible for the gradual gain in mechanical properties of wounded tissue between roughly 4 and 52 weeks post- injury.
fibrinogen - factor XIII
cross - linking
Polymers - cross linking of polymers
heparin
23. A condensation polymerization results with an ester bond between two reactants and this comes off as a result
Metals
Water
Free Radical
heparin
24. ____- are polymers that can be repeatedly softened by heating and hardened by cooling.
Enzyme cascade
Stable cells
Thermoplastics
chemotaxis
25. Thrombin also activates protein C-- which deactivates earlier factors in the cascade is known as ___ ___.
Collagenase
Negative Feedback
heparin
Hemophilia
26. Neutrophils remove bacteria/damaged cell debris from a wound site through the process of ___.
phagocytosis
Collagenase
stress
Plastic
27. Polyethylene oxide grafting to biomaterials was developed to prevent coagulation by interfering with/preventing ___ ___.
Protein Absorption
Water
Amide
Polydesperity index
28. Higher Molecular weight degrades slower than ____ MW
low
chemotaxis
Thermoplastics
Lower
29. Type of fiber drawing that controls details of a polymer by etching on a microscopic level; thus - controlling mechanical properties as well
micromachining
Proteases
Thrombin
glassy to rubbery
30. The fatigue limit is the ___ below which the material can withstand an infinite number of cycles without failure
Stress
Amide
Calibration
standards of known properties
31. ____ binds to anti- thrombin III (thrombin inhibitor) and increases its potency 1000- fold.
Heparin
Endothelial cells
mast cells
cross - linking
32. Where are the tissue factors found when they're inactivated
negative feedback
Plasticizers
in cytoplasm
Proteases
33. Deformation that cannot be recovered once the load is removed from the material is ____ deformation.
cycles
Lower
free radical
Plastic
34. ____ describes the ability of a device to function appropriately in the presence of blood.
Lower
Water
Collagenase
Hemocompatibility
35. 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
Free Radical
Have to be in a clean room free of dust and biocontamination - expensive
Amide
36. This type of feedback creates
Polymers - cross linking of polymers
heparin
Endothelial cells
negative feedback
37. Addition polymerization is commonly initiated by ___ - atoms that have an unpaired electron.
Proteases
free radical
Heparin
stress
38. ____ is a measurement that characterizes the breadth of the distribution of a polymer's molecular weight.
cycles
Polydesperity index
Extrusion
Proteases
39. Relative to free radical polymerization - condensation polymerization generally produces polymer of relatively ____ molecular weight.
alloys - passivation
low
Mast - Collagen
Compression molding
40. Cells that don't proliferate (neurons)
Compression molding
Permanent cells
Proteases
Negative Feedback
41. The glass transition temperature of a poymer at which a polymer transforms from a ____ state to a ___ state.
angiogenesis
Protein Absorption
Higher
glassy to rubbery
42. Drawback of micromaching
Have to be in a clean room free of dust and biocontamination - expensive
Enzyme cascade
Chemotaxis
low
43. A ____ implant is designed to elicit specific - intended to host responses.
binding
Positive Feedback
Bioactive
Allogeneic
44. Resulting from the build up of too much collagen at the surface of injury during the granulation tissue stage of proliferation
Free Radical
fibrinogen - factor XIII
scars
Plastic
45. Process that makes long fibers (fiber drawing) by forcing a fluid through an oriface.
Extrusion
angiogenesis
Thrombin
Bioactive
46. High conductivity - isotropic - crystalline
Damage to cell membranes
Thermoplastics
Amide
Metals
47. The two types of white blood cells:
neutrophils - macrophages
mast cells
Polymers - cross linking of polymers
Have to be in a clean room free of dust and biocontamination - expensive
48. 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
Negative Feedback
Compression molding
chemotaxis
49. This cleaves into fibrinogen which creates fibrin (a sticky enzyme that allows blood to clot)
Regeneration/Repair
Thrombin
Endothelial cells
Higher
50. Essentially all metallic biomaterials are ____ - comprised of two or more metals. One of these metals is selected for its ability to support _____ - the formation of a stable oxide layer that resists further corrosion.
Metals
Plastic
alloys - passivation
cross - linking