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The Scherrer equation, in X-ray diffraction and crystallography, is a formula that relates the size of sub-micrometre crystallites in a solid to the broadening of a peak in a diffraction pattern. It is often referred to, incorrectly, as a formula for particle size measurement or analysis. It is named after Paul Scherrer.
Plant cellulose, which makes up the cell walls of most plants, is a tough, mesh-like bulkwork in which cellulose fibrils are the primary architectural elements. While bacterial cellulose has the same molecular formula as plant cellulose, it has significantly different macromolecular properties and characteristics. [ 8 ]
The secondary cell wall, a thick layer formed inside the primary cell wall after the cell is fully grown. It is not found in all cell types. It is not found in all cell types. Some cells, such as the conducting cells in xylem , possess a secondary wall containing lignin , which strengthens and waterproofs the wall.
[3] [4] Microfluidics has been used for cell biology studies as the dimensions of the microfluidic channels are well suited for the physical scale of cells (in the order of magnitude of 10 micrometers). [2] For example, eukaryotic cells have linear dimensions between 10 and 100 μm which falls within the range of microfluidic dimensions. [4]
1.4 × 10 −3: Human brain cavity 1.80 × 10 −3: One shō (formerly a common sake-bottle size) 3.8 × 10 −3: One US liquid gallon: 4.36 × 10 −3: One semimodius: 4.40 × 10 −3: One US dry gallon 4.5 × 10 −3: One imperial gallon 5 × 10 −3: Approximate volume of the blood in one adult human 6 × 10 −3: Average total volume of the ...
SA:V is used to explain the diffusion of small molecules, like oxygen and carbon dioxide between air, blood and cells, [3] water loss by animals, [4] bacterial morphogenesis, [5] organism's thermoregulation, [6] design of artificial bone tissue, [7] artificial lungs [8] and many more biological and biotechnological structures. For more examples ...
Clockwise from top right: Amoeba proteus, Actinophrys sol, Acanthamoeba sp., Nuclearia thermophila., Euglypha acanthophora, neutrophil ingesting bacteria. An amoeba (/ ə ˈ m iː b ə /; less commonly spelled ameba or amœba; pl.: amoebas (less commonly, amebas) or amoebae (amebae) / ə ˈ m iː b i /), [1] often called an amoeboid, is a type of cell or unicellular organism with the ability ...
Cell expansion begins with the selective loosening of the cell wall, reducing the plant cell's turgor pressure and water potential. This allows for the influx of water, leading to cell enlargement. [3] This enlargement is made possible by the sliding of polymers, increasing the cell wall's surface area. In most plants, cell expansion is ...