BT405 Midterm MCQs

BT 405 Midterm Past M.C.Q

1. Nanoscale is considered to cover the range from __________________ 1-100nm
2. 1 nanometer is equal to ____________ part of a meter. Billionth
3. The study of categories is called ________________ Ontology
4. Nanoparticles can also be used to deliver chemotherapy drugs to specific cells, such as______ Cancer cells
5. Water filters that are only 15-20 nanometers wide can remove nanosized particles, including virtually all viruses

and bacteria.

6. Who used the word Nanobiotechnology for the first time? Professor Taniguchi
7. Who Entitled “There is a plenty of room at the botom”. Dr. Richard P. Feynman
8. The number of Carbon atoms in the Buckyballs is___________ 60
9. ________________fish consumed by humans worldwide. 50%
10. The current use of stem cell for __________________ Diabetes and spinal cord injuries
11. Who developed Humulin (human insulin) to treat diabetes in 1982? Genentech
12. Which was the first biotech drug to be FDA approved? Insulin
13. Bionanotechnology and Nanobiotechnology are terms that refer to the intersection of_________ nanotechnology

and biology

14. MRI is the full form of ___________________ Magnetic Resonance Images
15. Nanoparticles can enhance the efficacy of _______in detecting the spread of cancer. Magnetic resonance imaging
16. Nanoparticles such as quantum dots, which emit light of different colors depending on their________ Size
17. Silver (Ag) nanoparticles are embedded in sticking plasters for their ability to inhibit the transmission of viruses.
18. ___________ to iron oxide nanoparticles that are clearly visible under magnetic resonance imaging (MRI).

Pancreatic cancer cells

19. Titanium oxide nanoparticles have a comparable _________property to the bulk material. UV protection
20. The diameter of Nanorobots ________________ 0.5 to 3 microns
21. Nanoprobe can be made to________ that could kill bacteria, viruses and cancer cells. Generate radiation
22. The total market for nanobiotechnology products was ___________in 2010. $19.3 billion
23. The most common nanoscale substance used in consumer products is______________ Nano-silver
24. Which particles have antibacterial properties? Silver nanoparticles
25. ____________ has healing and anti-oxident properties. Nano gold
26. SAMMS stands for___________ self assembled monolayers on mesoporous supports
27. Nanoscience can potentially help us detect and treat cancer at the___________________ Molecular level
28. SPRI is the full form of_________________ Surface Plasmon Resonance Imaging
29. More than ___________ patients in the U.S. undergo MRIs each year. 25 million
30. NPs less than _________ show only their surface plasma resonance (SPR). 20 nm
31. The absorbance and scattering properties of AuNPs can be tuned in accordance with their size parameter.
32. _________is a phenomenon occurring at the metal surface when a beam of light is incident on the surface of the molecules at a particular angle and distance. Surface plasmon resonance (SPR)
33. PEG-coated iron oxide gold is a type of core-shell nanoparticles measuring approximately 25 nm in diameter.
34. AuNPs show excellent behavior of antiphotobleaching under the presence of strong light illumination.
35. A grain of sand is_________________ 1 million nm or 1 millimeter
36. A human hair is about _________________ thick. 50-100 microns
37. A human hair is about 1 million carbon atoms wide.
38. Quantum mechanics is a scientific model that was developed for describing the motion and energy of atoms and electrons.
39. One example of a random kinetic motion is______________ Brownian motion
40. The energy separation between the valence band and the conduction band is called________ Eg (band gap)
41. ________________is the phenomenon that occurs when radiation hits a structure with dimensions comparable to the incident wavelength. Scattering
42. Carbon nanotubes are ___________stronger than steel but ______ lighter. 100 times & six times
43. Nanomaterials can also be used to improve the ___________of existing materials. Mechanical properties
44. _____________________ is also known as bionics. Biomimetics
45. Magnetic nanoparticles of __________with a mean size of 6 nm can be encapsulated in these nanocavities. Iron

oxide and cobalt oxide

46. ___________ is a protein that transports and stores iron in an organism. Ferritin
47. Diatoms are a large group of eukaryotic microalgae that have a rigid cell wall made of______ Silica (SiO2)
48. Which organism is evolved in self-healing materials? Diatoms
49. ______________ molecule is the ability to restrict the passage of contaminants including bacteria, viruses, minerals, proteins, DNA and dissolved gases. Aquaporin
50. Which one of the following is forth state of matter? Liquid Crystal
51. Which has properties between those of a conventional liquid and those of a solid crystal? Liquid Crystal
52. Which phase that exists between solid and liquid? Liquid Crystal
53. Which phase in Molecules are long and rod-like in shape? Nematic Phase
54. If gold is shrunk to a nanoparticle, it changes colour, becoming____________ Red
55. Iron nanoparticles are __________ more reactive than commonly used iron powders. 10 to 1 000 times
56. Which nanoparticles have a strong antibacterial capacity? Silver
57. Nanofibers have 50 to 1000 nanometers in diameter.
58. The ___________ is between the valence band and the conduction band. Band gap
59. A quantum dot (QD) has a discrete quantised energy spectrum, so it can absorb a specific wavelength and emit a

monochromatic colour.

60. __________ is the most widely used white pigment because of its brightness. Titanium dioxide
61. Like TiO2, it is used for solar photocatalytic remediation_______________ Zinc oxide (ZnO)
62. Which one is the main component of quartz? Silicon dioxide (SiO2)