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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 value of applied stress below which a material will not fail no matter the number of ____ applied.
binding
Hemophilia
cycles
Positive Feedback
2. ____- are polymers that can be repeatedly softened by heating and hardened by cooling.
Thermoplastics
Amide
Enzyme cascade
Polydesperity index
3. The fatigue limit is the ___ below which the material can withstand an infinite number of cycles without failure.
micromachining
Hemocompatibility
in cytoplasm
stress
4. Condition in which patients can literally bleed to death.
Bioactive
Thrombin
alloys - passivation
Hemophilia
5. A condensation polymerization results with an ester bond between two reactants and this comes off as a result
Water
in cytoplasm
Thermoplastics
labile cells
6. What type of materials are used for photolithography? (substrate is a silicon wafer - built up material is some _____ ____ )
Thrombin
standards of known properties
macrophages - proliferation
photoactive polymers
7. No healing of damage neurons is the result of ____ cells that are not able to ____.
free radical
Permanent - replicate
Macrophages
Intermolecular bonding - molecular weight
8. The fatigue limit is the ___ below which the material can withstand an infinite number of cycles without failure
Stress
in cytoplasm
Permanent cells
Polymers - cross linking of polymers
9. Cell found in the lining of the blood vessels that release heparin and are a part of the negative feedback system.
mast cells
hypoxin - angiogenesis
Polydesperity index
Plastic
10. In order to produce a blood clot - thrombin cleaves/activates ____ and ____.
Enzyme cascade
Protein Absorption
fibrinogen - factor XIII
Proteases
11. Type of fiber drawing that controls details of a polymer by etching on a microscopic level; thus - controlling mechanical properties as well
micromachining
Water - oxygen - metal
mast cells
Large
12. ____ is the process by which cells involved in inflammation internalize and destroy foreign material.
Phagocytosis
Thermoplastics
Heparin
stress
13. 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.
Proteases
alloys - passivation
Stable cells
phagocytosis
14. Foreign body giants cells are produced by fusion of ___.
Extrusion
Macrophages
Heparin
Bioactive
15. Enzymes (proteins) are not activated only when they are in contact with this type of cells
Endothelial cells
Plastic
in cytoplasm
Extrusion
16. Neutrophils remove bacteria/damaged cell debris from a wound site through the process of ___.
phagocytosis
neutrophils - macrophages
free radical
Stable cells
17. The fibrous capsule surrounding a permanent implant is primarily composed of ___ cells and ____ (matrix).
Mast - Collagen
Large
chemotaxis
labile cells
18. _____ establishes a quantitative relationship between measured output values from an instrument and known standards of what is being measured.
glassy to rubbery
Hemophilia
Calibration
negative feedback
19. Mast cells release this
Hemocompatibility
heparin
Water - oxygen - metal
Regeneration/Repair
20. Damaged cells at the site of injury (mast cells) release ___ (glycosaminoglycan).
binding
low
heparin
Lower
21. Process of producing new blood vessels due to a lack on oxygen and thus inducing VEGF.
Intermolecular bonding - molecular weight
angiogenesis
macrophages - proliferation
chemotaxis
22. Rather than randomly moving - moves in a directed cell migration manner for specific functions.
hypoxin - angiogenesis
cross - linking
angiogenesis
chemotaxis
23. Drawback of micromaching
Thrombin
Lower
Have to be in a clean room free of dust and biocontamination - expensive
negative feedback
24. Cells that proliferate rapidly (fibroblasts)
labile cells
Protein Absorption
glassy to rubbery
stress
25. The formation of rust due to corrosion in the body is due to the reaction between these 3 things ____ - ____ - and ____ .
standards of known properties
Compression molding
Water - oxygen - metal
cross - linking
26. ____ grafts are derived from the other humans.
Thrombin
Allogeneic
phagocytosis
Collagenase
27. High conductivity - isotropic - crystalline
Plasticizers
Metals
mast cells
hypoxin - angiogenesis
28. A molecular pathway in which the product of each reaction catalyzes the subsequent reaction.
Permanent - replicate
Enzyme cascade
Thermoplastics
Proteases
29. During granulation stage of proliferation - growth factors that produce this ____(answer)_____ that function in degrading fibrin and replacing it with collagen.
free radical
Proteases
heparin
macrophages - proliferation
30. Cells that proliferate slowly over time (aka liver)
Negative Feedback
Stable cells
free radical
Heparin
31. Keloid scars form due to disfunction of ____.
Collagenase/Remodelling
Allogeneic
heparin
Heparin
32. 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.
Allogeneic
Water - oxygen - metal
autologous
Lower
33. Keloid scars forms because disfuntion of
Enzyme cascade
Extrusion
Collagenase
Plasticizers
34. The trigger for activation of enzymes (anything but endothelial cells!)
Regeneration/Repair
binding
heparin
autologous
35. Cells that don't proliferate (neurons)
labile cells
Permanent cells
low
Amide
36. 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?
Proteases
Compression molding
phagocytosis
Allogeneic
37. 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
Hemocompatibility
Enzyme cascade
in cytoplasm
38. Activates tissue factors aka endothelial damage
Damage to cell membranes
glassy to rubbery
Polymers - cross linking of polymers
cross - linking
39. What types of wound healing results from injury with inflammation?
Enzyme cascade
Regeneration/Repair
Mast - Collagen
Permanent - replicate
40. Is directed cell migration in response to a concentration gradient of soluble molecules.
Free Radical
fibrinogen - factor XIII
Water - oxygen - metal
Chemotaxis
41. A ____ implant is designed to elicit specific - intended to host responses.
cross - linking
Phagocytosis
Have to be in a clean room free of dust and biocontamination - expensive
Bioactive
42. Disfunction of _____ (cells) producing collagenase during the _____ phase of wound healing may form Keloid scars.
Hemophilia
macrophages - proliferation
Water - oxygen - metal
binding
43. ____ are enzymes responsible for protein degradation.
Proteases
Chemotaxis
chemotaxis
Thrombin
44. Vascular endothelial growth factor is produced in response to ___ and stimulates ___.
hypoxin - angiogenesis
Water - oxygen - metal
angiogenesis
Enzyme cascade
45. Polyethylene oxide grafting to biomaterials was developed to prevent coagulation by interfering with/preventing ___ ___.
Protein Absorption
Thrombin
Permanent cells
Intermolecular bonding - molecular weight
46. List two chemical characteristics of polymers:
Metals
Have to be in a clean room free of dust and biocontamination - expensive
Intermolecular bonding - molecular weight
Bioactive
47. Two things needed in the end product of the creation of a scab
fibrinogen - factor XIII
Protein Absorption
Proteases
Polymers - cross linking of polymers
48. This cleaves into fibrinogen which creates fibrin (a sticky enzyme that allows blood to clot)
low
Collagenase/Remodelling
Mast - Collagen
Thrombin
49. The two types of white blood cells:
photoactive polymers
neutrophils - macrophages
Thrombin
Bioactive
50. ____ binds to anti- thrombin III (thrombin inhibitor) and increases its potency 1000- fold.
Bioactive
autologous
scars
Heparin