exogenous pigment - определение. Что такое exogenous pigment
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Что (кто) такое exogenous pigment - определение

SYNDROME CAUSED BY THE ACCUMULATION OF HOMOGENTISIC ACID IN CONNECTIVE TISSUES
Ochronotic pigment; Ochronotic; Exogenous ochronosis
  • [[Ocher]] pigment, after which the condition was named, due to the similar color of affected tissue.
  • Pathophysiology of alcaptonuria is due to the absence of functional homogentisate dioxygenase in the liver.

Photosynthetic pigment         
  • [[Electromagnetic spectrum]] – wavelengths in metres}}
PIGMENT THAT IS PRESENT IN CHLOROPLASTS OR PHOTOSYNTHETIC BACTERIA AND CAPTURES THE LIGHT ENERGY NECESSARY FOR PHOTOSYNTHESIS
Photosynthetic Pigments; Antenna pigment; Antenna pigments; Light harvesting pigment; Photosynthetic pigments; Photosynthetic antenna molecule; Light-harvesting pigment; Pigments in Chloroplast; Draft:Pigments in Leaves; Draft:Pigments in Chloroplast; Draft:List of pigments in chloroplast
A photosynthetic pigment (accessory pigment; chloroplast pigment; antenna pigment) is a pigment that is present in chloroplasts or photosynthetic bacteria and captures the light energy necessary for photosynthesis.
Earth pigment         
  • A range of pigments were mined by [[Indigenous Australians]] at this Ochre Pit in central [[Australia]].
NATURALLY OCCURRING MINERALS USED AS PIGMENTS
Clay earth pigment
Earth pigments are naturally occurring minerals containing metal oxides, principally iron oxides and manganese oxides, that have been used since prehistoric times as pigments. The primary types are ochre, sienna and umber.
pigment         
  • Sunlight encounters Rosco R80 "Primary Blue" pigment. The product of the source spectrum and the reflectance spectrum of the pigment results in the final spectrum, and the appearance of blue.
  • Phthalo Blue]]
  • Natural [[ultramarine]] pigment in powdered form
  • A wide variety of wavelengths (colors) encounter a pigment. This pigment absorbs red and green light, but reflects blue—giving the substance a blue-colored appearance.
  • Synthetic ultramarine pigment is chemically identical to natural ultramarine
MATERIAL THAT CHANGES THE COLOR OF REFLECTED OR TRANSMITTED LIGHT
Pigmentation; Pigments; Natural pigment; Lake (dyeing); Pigment (material); Paint pigment; Pigments, biological; Synthetic pigment; Paint colour; Paint colours; Organic pigment
¦ noun
1. the natural colouring matter of animal or plant tissue.
2. a substance used for colouring or painting, especially a dry powder which constitutes a paint or ink when mixed with oil or water.
¦ verb [usu. as adjective pigmented] colour with or as if with pigment.
Derivatives
pigmentary adjective
pigmentation noun
Origin
ME: from L. pigmentum, from pingere 'to paint'.

Википедия

Ochronosis

Ochronosis is a syndrome caused by the accumulation of homogentisic acid in connective tissues. The condition was named after the yellowish (ocher-like) discoloration of the tissue seen on microscopic examination. Macroscopically, though, the affected tissues appear bluish-grey because of a light-scattering phenomenon known as the Tyndall effect. The condition is most often associated with alkaptonuria, but can occur from exogenous administration of phenol complexes such as hydroquinone. It was first described by Rudolf Virchow in 1865.