Absorption

Absorption spectrum observed by the Hubble Space Telescope
In both the atomic and molecular cases, the excited states do not persist: after some random amount of time, the atoms and molecules revert back to their original, lower energy state.
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absorption
the taking up of substances or their passage through the walls of cells
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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Malabsorption is the state of impaired absorption of nutrients in the small intestine. It has many different potential causes. Specific causes lead to different patterns in malabsorption.
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Absorption spectrum
An absorption spectrum is a diagram depicting the wavelengths of electromagnetic radiation absorbed by a material, usually a gas.
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Absorption Spectra
An absorption spectrum is a spectrum of radiant energy whose intensity at each wavelength is a measure of the amount of energy at that wavelength that has passed through a selectively absorbing substance.
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absorption -- The taking in of water and dissolved minerals and nutrients across cell membranes. Contrast with ingestion.
aerobic -- Pertaining to the presence of free oxygen. Aerobic organisms require oxygen for their life processes.
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absorption: the process in which nutrients enter cells of the villi, then move across the cells and enter blood vessels.
acids: compounds that release hydrogen ions (H+) when the compounds are placed in water.
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absorption spectrum Graph of absorbance values for different wavelengths of light.
absorption The process of taking in, as uptake by roots.
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absorption The process by which the products of digestion are transferred into the body's internal environment, enabling them to reach the cells.
absorptive feeders Animals such as tapeworms that ingest food through the body wall.
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absorption
[L. absorbere, to swallow down]
The movement of water and dissolved substances into a cell, tissue, or organism.
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The absorption of a fluorophore depends on the polarization angle of the excitation light, and fluorescence emission is also polarized. Fluorescence polarization is used to detect the direction and rotation of molecule movement.
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1980: Absorption of Actinide Elements from the Gastrointestinal Tract of Rats, Guinea Pigs, and Dogs by M.F. Sullivan, Health Phys. 38:159.
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Transfer by absorption of DNA fragments separated in electrophoretic gels to membrane filters (nylon or nitrocellulose) for detection of specific base sequences by radiolabeled complementary probes.
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ab- from ad- towards ADME- An anacronism used in drug development, meaning absorption, distribution, metabolism and excretion.
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The main function of the opsin is to change shape after light absorption triggers the isomerization of the chromophore: the opsin is an enzyme that is activated by the chromophore's isomerization.
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Cells that are specialized for absorption (ex: intestinal cells) have folds in the plasma membrane called microvilli that increase the surface area.
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A disease in which the bones are weakened by reduced calcium absorption. Long-term use of glucocorticoids can result in this condition.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
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Although there are limited studies on the bioavailability of the polyphenols, the absorption of flavanols in humans has been shown.
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Attenuation (of light). Diminution of light intensity; explained, in the ocean, in terms of absorption and scattering
Autotrophic algae. Algae capable of photosynthesis and growth using only dissolved inorganic nutrients ...
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Southern blot: The transfer (by absorption) of size-separated (by electrophoresis) DNA fragments to a synthetic membrane whereby the presence and rough size of one particular fragment of DNA can be ascertained by detection of specific base sequences ...
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collecting tubules
That part of the renal tubule in a kidney in which water absorption takes place under the control of ADH, producing urine of variable concentration depending on overall water levels in the body.
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feeder roots. The youngest roots with root hairs, important in absorption of water and minerals.
field capacity. The moisture level in soil after saturation and runoff.
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[Gr. osteon - bone; Gr. klastos - broken in pieces]. A multinucleated cell that breaks down bone through reabsorption.
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