
	Where results make sense

Topic: Photosynthetic pigment

Related Topics

Phaeophytin

Chlorophyll

Chloroplast

In the News (Wed 11 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Photosynthetic pigment - Biocrawler
		A photosynthetic pigment is a pigment that is present in chloroplasts or photosynthetic bacteria and captures the light energy necessary for photosynthesis.
		However, none of the pigments absorbs well in the green-yellow region, which is responsible for the abundant green we see in nature.
		Photosynthetic archaea (the halobacteria) use the pigment bacteriorhodopsin which acts directly as a proton pump when exposed to light.
	www.biocrawler.com /encyclopedia/Photosynthetic_pigment (0 words)

	Photosynthetic Pigments
		A third form of chlorophyll which is common is (not surprisingly) called chlorophyll "c", and is found only in the photosynthetic members of the Chromista as well as the dinoflagellates.
		Phycobilins are water-soluble pigments, and are therefore found in the cytoplasm, or in the stroma of the chloroplast.
		The pigments are chemically bonded to antibodies, which are then put into a solution of cells.
	www.ucmp.berkeley.edu /glossary/gloss3/pigments.html (0 words)

	pigment - Search Results - MSN Encarta
		A pigment is a material that changes the color of light it reflects as the result of selective color absorption.
		The retinal pigment epithelium is the pigmented cell layer just outside the neurosensory retina that nourishes retinal visual cells, and is firmly attached to the underlying choroid and overlying...
		Pigment is a highly concentrated loose colour powder that contains ingredients to help it adhere to the skin.
	encarta.msn.com /pigment.html (234 words)

	Photosynthetic pigment: Definition and Links by Encyclopedian.com
		...Photosynthetic pigment Photosynthetic pigment A photosynthetic pigment is a...in chloroplasts or photosynthetic bacteria which provides the energy necessary for photosynthesis...the energy necessary for photosynthesis.
		A photosynthetic pigment is a pigment present in chloroplasts or photosynthetic bacteria which provides the energy necessary for photosynthesis.
		Pigmentation varies among the different groups of algae.
	www.encyclopedian.com /ph/Photosynthetic-pigment.html (270 words)

	Plant Pigments and Photosynthesis
		Most pigments absorb red and blue wavelengths (which are used as light energy in the light reactions) and reflect green, which explains plant leaf color.
		Chlorophyll a is the primary photosynthetic pigment in plants.
		Pigments are used in the photosystems, generally in the reaction center.
	www.niles-hs.k12.il.us /amilef/APReviewOut/jennykwaklab4_files/jennykwaklab4.htm (993 words)

	The photosynthetic apparatus of the Barents Sea Fucales (Phaeophyta) after polar night - Begell House Inc.
		Species-specific changes in pigment contents evidently depended on the depth of the algae habitats in the littoral zone and quite probably were conditioned by the anatomical and morphological differences in the thallus structure (the ratio between the assimilation and heterotrophic cell layers).
		The ability of Fucales to maintain the pigment contents in the cells had increased before the beginning of the polar night and was determined by their continuing metabolic activity.
		s), the decrease in photosynthetic pigment concentrations was registered in the investigated algae that quite probably was a trait of adaptation to some increase in the illuminance level.
	www.begellhouse.com /journals/7dd4467e7de5b7ef,7d4db741238a84a9,59e2a4716f7aeabb.html (378 words)

	Introduction to Photosynthesis
		Other photosynthetic organisms, such as cyanobacteria (formerly known as blue-green algae) and red algae, have additional pigments called phycobilins that are red or blue and that absorb the colors of visible light that are not effectively absorbed by chlorophyll and carotenoids.
		Photosynthetic pigments come in a huge variety: there are many different types of (bacterio)chlorophyll, carotenoids, and phycobilins, differing from each other in their precise chemical structure.
		Many antenna pigments transfer their light energy to a single reaction center by having this energy "hop" to another antenna pigment, and yet to another, etc., until the energy is "trapped" in the reaction center.
	www.cartage.org.lb /en/themes/Sciences/BotanicalSciences/Photosynthesis/Introduction/Introduction.htm (1865 words)

	Photosynthetic Pigment (Site not responding. Last check: )
		Photosynthetic pigment is a pigment present in chloroplasts or photosynthetic bacteria which provides the energy necessary for photosynthesis.
		The photosynthetic pigments are responsible for absorbing and trapping light energy in the early steps of photosynthesis.
		All photosynthetic pigments possess a long, regular chain of carbon atoms which are bonded by alternating single and double bonds, an arrangment called a conjugated system.
	www.greatvistachemicals.com /dyes_and_pigments/photosynthetic_pigment.html (790 words)

	Chlorophyll Summary
		The different chlorophyll and non-chlorophyll pigments associated with the photosystems all have different spectra, either because the spectra of the different chlorophylls are modified by their local protein environment, or because the accessory pigments have intrinsically different absorption spectra from chlorophyll.
		Most photosynthetic organisms do not have pigments which absorb green light well, thus most remaining light under leaf canopies in forests or under water with abundant plankton is green, a spectral effect called the "green window".
		Chlorophyll is a chlorin pigment, which is structurally similar to and produced through the same metabolic pathway as other porphyrin pigments such as heme.
	www.bookrags.com /Chlorophyll (2790 words)

	Reefs.org: Where Reefkeeping Begins on the Internet - View Document
		Photosynthetic pigments are the pigments that collect and process light energy which is eventually directly utilized by the photosynthetic apparatus.
		Coral pigments cannot directly transfer collected light energy to the corals symbiotic algae, but in some deep water corals their pigments appear to be modifying the existing light field by fluorescing one color or wavelength of light into another color or wavelength.
		This is done by the pigments absorption of blue and violet and its emission of primarily green to yellowish light which is less useable for photosynthesis.
	www.reefs.org /library/talklog/s_tyree_060202.html (5477 words)

	OLCG: Global Change Education
		It is important to remember that the key photosynthetic pigment is chlorophyll because the light energy it absorbs is directly used for photosynthesis while the other pigments have to pass the light energy they absorbed, to chlorophyll.
		(The different pigment molecules present in the leaves are represented by the colors shown on the strip: green for the chlorophyll pigment, yellow for the xanthophyll, orange for carotene and bright red or purple for anthocyanins).
		Xanthophyll and carotene are examples of accessory pigments designated as accessory because they cannot transfer sunlight energy directly to the photosynthetic pathway, but must pass their absorbed energy to chlorophyll.
	www.uaf.edu /olcg/globalchange/phenology/pigment.html (2932 words)

	Photosynthesis
		Pigments generally are bound to proteins, which provide the pigment molecules with the appropriate orientation and positioning with respect to each other.
		However, in particular the first part of photosynthetic electron transfer in plants is rather sensitive to overly high rates of electron transfer, and part of the photosynthetic electron transport chain may be shut down when the light intensity is too high; this phenomenon is known as photoinhibition.
		Many synthetic pigments also have found biomedical uses in tumor detection, as they -for unknown reasons- tend to accumulate preferentially in tumors and are highly fluorescent and thus easily detectable in a patient whom is being operated on to surgically remove a tumor.
	photoscience.la.asu.edu /photosyn/education/photointro.html (0 words)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal (Site not responding. Last check: )
		Once extracted from the protein into a solvent (such as acetone or methanol), these chlorophyll pigments can be separated in a simple paper chromatography experiment, and, based on the number of polar groups between chlorophyll a and chlorphyll b, will chemically separate out on the paper.
		The function of the reaction center chlorophyll is to use the energy absorbed by and transferred to it from the other chlorophyll pigments in the photosystems to undergo a charge separation, a specific redox reaction in which the chlorophyll donates an electron into a series of molecular intermediates called an electron transport chain.
		The different chlorophyll and non-chlorophyll pigments associated with the photosystems all have different spectra, either because the spectra of the different chlorophyll pigments are modified by their local protein environment, or because the accessory pigments have intrinsically different absorption spectra from chlorophyll.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=chlorophyll (1214 words)

	More about Plant Cells
		If there was only one kind of photosynthetic pigment you would expect all green plants to be exactly the same shade of green, but they are not.
		This is because there are several different photosynthetic pigments and different plants have different amounts of each one and they are not all the same colour.
		It is possible to separate these pigments from leaves using a technique called "chromatography".
	www.purchon.com /biology/plant.htm (447 words)

	ABLE: Diversity of Photosynthetic Pigments
		The similarity of pigments in these three divisions suggests a common origin for their chloroplasts and photosynthetic apparatus, but one of them is probably not closely related to the other two.
		Member of the Euglenophyta (e.g., Euglena) have the same photosynthetic pigment distribution as members of the Chlorophyta, but their chloroplasts are enclosed by a triple membrane rather than the usual double membrane found in chloroplasts of green algae.
		The pattern of photosynthetic pigments in red algae corresponds closely to that of cyanobacteria, with the presence of phycobilins and the absence of chlorophyll b.
	www.zoo.utoronto.ca /able/volumes/vol-16/6-motten/6-motten.htm (0 words)

	Botany online: Photosynthesis - Photosynthetic Membrane
		This is not only true for photosynthetic reactions but also for those of the respiratory chain and for the enzymes located within the purple membrane of Halobacterium halobium (an archaebacterium using light energy for the production of ATP without an electron flow).
		Several chlorophyll-binding proteins of the photosynthetic membranes of different systematic groups (angiosperms, gymnosperms, algae, bacteria) have been isolated and characterized.
		In 1985 was the structure of the photosynthetic reaction centre's protein subunits determined.
	www.biologie.uni-hamburg.de /b-online/e24/24d.htm (2267 words)

	isatis pigment (Site not responding. Last check: )
		I have references to it being used as a pigment from the 9th C.) I'm sure that woad or indigo, indigo having been imported since at least the first Crusade, was used in the Bayeux Tapestry to produce...
		The pigment was obtained by fermentation and oxidation of...
		The object of the present invention is to provide a water-based pigment dispersion containing a pigment, a dispersing agent, a resin emulsion, and water, the water-based pigment dispersion is subjected to a heat treatment.
	www.isatisweb.com /isatispigment (1209 words)

	Life History and Ecology of Cyanobacteria
		Cyanobacteria get their name from the bluish pigment phycocyanin, which they use to capture light for photosynthesis.
		They also contain chlorophyll a, the same photosynthetic pigment that plants use.
		Whatever their color, cyanobacteria are photosynthetic, and so can manufacture their own food.
	www.ucmp.berkeley.edu /bacteria/cyanolh.html (550 words)

	[No title]
		Photosynthetic pigments are receptors that absorb sunlight so that the plant may convert this energy into usable forms for ultimately all living organisms.
		The strip of pigment was marked with a pencil.
		The layering of the pigment onto the silica gel was very important, proving higher concentration yields better color and amount of pigments.
	teach.valdosta.edu /rgoddard/PlPhys/2005/gordon/ps.doc (465 words)

	Library of Crop Technology Lessons
		A pigment is a generic term for a molecule that absorbs light and has a color.
		Photosynthetic pigments are the only pigments that have the ability to absorb energy from sunlight and make it available to the photosynthetic apparatus.
		In land plants, there are two classes of these photosynthetic pigments, the chlorophylls and the carotenoids.
	croptechnology.unl.edu /viewLesson.cgi?min=1&max=10&topic_order=2&LessonID=939154129 (256 words)

	Photosynthesis: Photosynthetic Plant Pigments (Site not responding. Last check: )
		Photosynthetic plant pigments have the capability to absorb certain wavelengths (colors) of light and change the light energy to chemical energy.
		The plant pigments are found in chloroplasts on the thylakoids.
		All the pigments are linked together, to give the energy they pick up to then energize electrons.
	ghs.gresham.k12.or.us /science/ps/sci/soph/energy/photosyn/pigments.htm (100 words)

	Special Story:Photosynthesis-The earth's environment was created by organisms
		To compare those pigments, and to know the evolution of pigment are very important for understanding the evolution of plants.
		Among Prokaryote which have a photosynthetic system just as plants growing in soil do, Cyanobacteria (blue-green algae) which have chlorophyll a and prokaryotic chlorophyta, which have both chlorophyll a and b, are known.
		Therefore, it was believed that the arrangement and kind of the pigment in the protein were strictly determined.
	www.brh.co.jp /en/experience/journal/30/ss_3.html (944 words)

	Chlorophyll is the green photosynthetic pigment photosynthetic pigment present in...
		Chlorophyll is the green photosynthetic pigment photosynthetic pigment present in...
		The intense green color of chlorophyll is due to its strong absorbencies in the red and blue regions of the electromagnetic spectrum electromagnetic spectrum, and because of these absorbencies the light it reflects and transmits appears green.
		Chlorophyll is a chlorin chlorin pigment pigment, related to the porphyrin porphyrin containing iron iron compound known as heme heme.
	www.biodatabase.de /Chlorophyll (385 words)

	Chlorophyll, Chlorophyllin \| health benefits, dietary sources, side effects (Site not responding. Last check: )
		Chlorophyll a is the pigment that participates directly in the light requiring reactions of photosynthesis.
		It is an accessory pigment and acts indirectly in photosynthesis by transferring the light it absorbs to chlorophyll a.
		Chlorophyll or closely-related pigments (substances that color the plant) are essential to the photosynthetic process.
	www.vitamins-supplements.org /phytochemicals/chlorophyll.php (972 words)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal (Site not responding. Last check: )
		A photosynthetic pigment or antenna pigment is a pigment that is present in chloroplasts or photosynthetic bacteria and captures the light energy necessary for photosynthesis.
		Several other groups of bacteria use the bacteriochlorophyll pigments (similar to the chlorophylls) for photosynthesis.
		Recently, a very different pigment has been found in some marine γ-proteobacteria: proteorhodopsin.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=photosynthetic_pigment (314 words)

Try your search on: Qwika (all wikis)