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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. 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.
negative feedback
Hemophilia
Large
mast cells
2. The fatigue limit is value of applied stress below which a material will not fail no matter the number of ____ applied.
labile cells
Damage to cell membranes
cycles
mast cells
3. ____ grafts are derived from the other humans.
Proteases
Number of polymers - molecular weight of polymer
Lower
Allogeneic
4. What type of materials are used for photolithography? (substrate is a silicon wafer - built up material is some _____ ____ )
scars
Allogeneic
photoactive polymers
Thrombin
5. Neutrophils remove bacteria/damaged cell debris from a wound site through the process of ___.
Proteases
phagocytosis
Metals
Permanent - replicate
6. The two types of white blood cells:
alloys - passivation
Damage to cell membranes
neutrophils - macrophages
angiogenesis
7. Condition in which patients can literally bleed to death.
Hemophilia
Permanent - replicate
Chemotaxis
chemotaxis
8. Drawback of micromaching
Have to be in a clean room free of dust and biocontamination - expensive
Collagenase
Hemophilia
Phagocytosis
9. Damaged cells at the site of injury (mast cells) release ___ (glycosaminoglycan).
fibrinogen - factor XIII
heparin
Plasticizers
Negative Feedback
10. Higher Molecular weight degrades slower than ____ MW
Permanent - replicate
neutrophils - macrophages
Lower
Permanent cells
11. 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
cycles
Mast - Collagen
Heparin
12. The process of calibration establishes a quantitative relationship between ____ __ ___ _____ and the direct output of the intstrument (for example time/volume in GPC).
Water - oxygen - metal
Phagocytosis
Higher
standards of known properties
13. Enzyme that really gets the polmerization going!
Thrombin
Regeneration/Repair
labile cells
Collagenase
14. Vascular endothelial growth factor is produced in response to ___ and stimulates ___.
Positive Feedback
Permanent - replicate
Thrombin
hypoxin - angiogenesis
15. Polyethylene oxide grafting to biomaterials was developed to prevent coagulation by interfering with/preventing ___ ___.
mast cells
Stress
Protein Absorption
negative feedback
16. Keloid scars forms because disfuntion of
Hemophilia
Collagenase
Higher
Polymers - cross linking of polymers
17. ____ is a measurement that characterizes the breadth of the distribution of a polymer's molecular weight.
Polydesperity index
Calibration
Regeneration/Repair
free radical
18. Deformation that cannot be recovered once the load is removed from the material is ____ deformation.
Bioactive
Plasticizers
Plastic
standards of known properties
19. Thrombin activates several upstream factors.
Positive Feedback
in cytoplasm
Mast - Collagen
binding
20. The fibrous capsule surrounding a permanent implant is primarily composed of ___ cells and ____ (matrix).
Mast - Collagen
standards of known properties
labile cells
Stable cells
21. No healing of damage neurons is the result of ____ cells that are not able to ____.
Thermoplastics
Permanent - replicate
heparin
scars
22. Where are the tissue factors found when they're inactivated
in cytoplasm
Hemophilia
Intermolecular bonding - molecular weight
Chemotaxis
23. Are polymer additives used to lower glass transition temperature temperature.
chemotaxis
photoactive polymers
Plasticizers
angiogenesis
24. The formation of rust due to corrosion in the body is due to the reaction between these 3 things ____ - ____ - and ____ .
scars
hypoxin - angiogenesis
Water - oxygen - metal
Mast - Collagen
25. ______ Molecular weight degrades slower than lower MW
Bioactive
Enzyme cascade
Higher
Proteases
26. Mast cells release this
binding
heparin
Thermoplastics
Proteases
27. The calculation of a polymer's molecular weight (weight average and number number average) is based upon values for ____ and ___.
Macrophages
Proteases
Number of polymers - molecular weight of polymer
Polydesperity index
28. Foreign body giants cells are produced by fusion of ___.
macrophages - proliferation
Polydesperity index
Macrophages
Damage to cell membranes
29. This cleaves into fibrinogen which creates fibrin (a sticky enzyme that allows blood to clot)
Thrombin
Number of polymers - molecular weight of polymer
Plasticizers
Collagenase
30. Enzymes (proteins) are not activated only when they are in contact with this type of cells
Heparin
Positive Feedback
Amide
Endothelial cells
31. Resulting from the build up of too much collagen at the surface of injury during the granulation tissue stage of proliferation
Allogeneic
Protein Absorption
scars
Chemotaxis
32. During granulation stage of proliferation - growth factors that produce this ____(answer)_____ that function in degrading fibrin and replacing it with collagen.
Plasticizers
Bioactive
Proteases
mast cells
33. ____ is the process by which cells involved in inflammation internalize and destroy foreign material.
cycles
Phagocytosis
free radical
Endothelial cells
34. High conductivity - isotropic - crystalline
Allogeneic
Chemotaxis
Metals
chemotaxis
35. Relative to free radical polymerization - condensation polymerization generally produces polymer of relatively ____ molecular weight.
scars
low
fibrinogen - factor XIII
Thrombin
36. A ____ implant is designed to elicit specific - intended to host responses.
Calibration
Bioactive
alloys - passivation
Enzyme cascade
37. Activates tissue factors aka endothelial damage
Negative Feedback
Polydesperity index
Damage to cell membranes
Extrusion
38. Two things needed in the end product of the creation of a scab
Enzyme cascade
cross - linking
Polymers - cross linking of polymers
stress
39. Process that makes long fibers (fiber drawing) by forcing a fluid through an oriface.
Extrusion
Proteases
Amide
Macrophages
40. Cells that don't proliferate (neurons)
Permanent cells
Chemotaxis
Amide
Hemophilia
41. _____ establishes a quantitative relationship between measured output values from an instrument and known standards of what is being measured.
Enzyme cascade
Intermolecular bonding - molecular weight
in cytoplasm
Calibration
42. Type of fiber drawing that controls details of a polymer by etching on a microscopic level; thus - controlling mechanical properties as well
Collagenase/Remodelling
chemotaxis
Permanent - replicate
micromachining
43. The fatigue limit is the ___ below which the material can withstand an infinite number of cycles without failure.
stress
in cytoplasm
mast cells
Compression molding
44. The glass transition temperature of a poymer at which a polymer transforms from a ____ state to a ___ state.
Protein Absorption
Large
glassy to rubbery
autologous
45. Cell found in the lining of the blood vessels that release heparin and are a part of the negative feedback system.
micromachining
fibrinogen - factor XIII
macrophages - proliferation
mast cells
46. Classify the following polymers into appropriate families based on their bond structure i.e. the polymer is an example of poly ____.
Protein Absorption
Allogeneic
Amide
Regeneration/Repair
47. What types of wound healing results from injury with inflammation?
autologous
Have to be in a clean room free of dust and biocontamination - expensive
cycles
Regeneration/Repair
48. Collagen ____ is responsible for the gradual gain in mechanical properties of wounded tissue between roughly 4 and 52 weeks post- injury.
cross - linking
Stable cells
scars
Plastic
49. Cells that proliferate rapidly (fibroblasts)
labile cells
Negative Feedback
Heparin
Collagenase
50. Is directed cell migration in response to a concentration gradient of soluble molecules.
Positive Feedback
Thermoplastics
Chemotaxis
Polymers - cross linking of polymers