nanometer -- n. A unit of measure; one millionth (10-9) of a meter.
nematocyst -- Older name for a cnidocyst.
nerve -- A bundle of neurons, or nerve cells. More properly, it is a bundle of axons.
Nanometer (NAN-oh-MEE-tur) One billionth (10-9) of a meter or one thousandth of a micrometer. The nanometer is frequently used to measure organelles and small structures within cells.
It studies the properties of materials that are between one and 100 nanometers in size. So what's a nanometer? It's 10 to the minus-nine meters or .000000001 meters. That's one ten-thousandths the diameter of the human hair.
The nuclear lamina is a dense, ~ 30 to 100 nanometers thick, fibrillar network composed of intermediate filaments made of lamin that lines the inner surface of the nuclear envelope in animal cells.
The structure of the influenza virus (see Figure 1) is somewhat variable, but the virion particles are usually spherical or ovoid in shape and 80 to 120 nanometers in diameter.
Externally controllable interconnects, employing nuclear track-etched polycarbonate membranes with nanometer diameter pores, are described that produce hybrid three-dimensional fluidic architectures.
However, even the largest of these "nanofossils" have diameters of only 100 nanometers (nm) (0.1 µm, about the size of a ribosome).
A nanometer is one-billionth of a meter long. How many micrometers tall are you?
Describe the function of the nuclear envelope and nucleolus.
Describe the details of the structure of the chloroplast, the site of photosynthesis.
So hemagglutinin (HA) and neuraminidase (NA) are spike glycoproteins that protrude from the virus surface by about 10 to 14 nanometers. So these proteins are quite large proteins. They have different surface loops.
Though chlorophyll a normally has an optimal absorption wavelength of 660 nanometers, it associates with different proteins in each type of photosytem to slightly shift its optimal wavelength, producing two distinct photosystem types.
The human eye can detect light in the 400-700 nanometer (nm) range, a small portion of the electromagnetic spectrum, the visible light spectrum. Light with wavelengths shorter than 400 nm is termed ultraviolet (UV) light.
cytoplasmic filaments intermediate in diameter (about 10 nanometers) between the microfilaments and the microtubules. They may be composed of any of a number of different proteins and form a ring around the cell nucleus.
The entire spectrum of radiation; ranges in wavelength from less than a nanometer to more than a kilometer.
electron
A particle with a single negative charge; one or more electrons orbit the nucleus of the atom.
1 millimeter = 0.001 meter
1 micron = 0.000001 meter
1 nanometer = 0.000000001 meter
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Angstrom
A unit of measurement that was widely used until recently to describe molecular dimensions, but the unit nanometer (nm) is now more commonly used. One angstrom equals 10 nm.
radiation emitted by atoms during extranuclear loss of energy of incident radiation or by atoms if certain radionucleotides during transformation of electron capture. X rays have wavelengths in the range of 1 picometers to 10 nanometers.
 See also: Protein, Organ, Trans, Proteins, Cell
  
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