Chloroplast

Chloroplasts contain several important membranes, vital for their function. Like mitochondria, chloroplasts have a double-membrane envelope, called the chloroplast envelope.
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Chloroplasts
A typical plant cell (e.g., in the palisade layer of a leaf) might contain as many as 50 chloroplasts.
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Circular DNA found in the photosynthesizing organelle (chloroplast) of plants instead of the cell nucleus where most genetic material is located.
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Chloroplasts are organelles found in plant cells and eukaryotic algae which conduct photosynthesis. Chloroplasts are similar to mitochondria but are found only in plants.
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Chloroplast DNA (ctDNA)
The circular, superhelical double-strand DNA of the chloroplasts. The structure is two inverted repeats separating one small single copy and one large single copy.
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Chloroplast. In eukaryotic organisms, the cellular organelle in which photosynthesis takes place ...
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chloroplast -- A chlorophyll-containing plastid found in algal and green plant cells.
chromosome -- Linear piece of eukaryotic DNA, often bound by specialized proteins known as histones.
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Chloroplast structure
The photograph below is an elodea leaf X 400. Individual cells are clearly visible. The tiny green structures within the cells are chloroplasts.
Click the image (above) to enlarge it.
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Chloroplasts and mitochondria still retain their own DNA, and may have evolved several times.
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chloroplast: an organelle within green plants in which photosynthesis occurs.
chordates: animals with rods along their backs, including reptiles, amphibians, birds, and mammals.
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chloroplast
(klor-oh-plast) [Gk. chloros, green + plastos, formed]
An organelle found only in plants and photosynthetic protists that absorbs sunlight and uses it to drive the synthesis of organic compounds from carbon dioxide and water.
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chloroplast - specialized organelle in green algae and plants that contains chlorophyll and performs photosynthesis ...
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chloroplast
A subcellular organelle which contains chlorophyll and enzymes necessary to perform photosynthesis. Has an inner and outer membrane, as well as a third membrane bound sac, the thylakoid.
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Chloroplast
: A major component of a
plastid
in green plants and eukaryotic algae of any colour. It is involved in photosynthesis. Prokaryotic photosynthetic organisms do not have chloroplasts.
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chloroplast A plastid containing chlorophyll and usually other pigments, found in cytoplasm of plant cells.
Choana choane = funnel. Nasal passage.
choanocyte One of the flagellate collar cells that line cavities and canals of sponges.
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Chloroplasts and mitochondria are organelles within eukaryotic cells (cells of organisms other than bacteria, which do not have organelles). These organelles have their own genetic material.
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A chloroplast prior to the development of chlorophyll.
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Chloroplast a photosynthetic organelle in plant and protista cells
(chloro = green; plasti = formed molded) ...
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columbar cells with chloroplasts in the mesophyll tissues of leaves, just below the upper epidermis
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
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chloroplasts Chlorophyll-containing photosynthetic organelles in some eukaryotic cells. chromatin A filamentous complex of DNA, histones, and other proteins, constituting the eukaryotic chromosome.
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Chlorophyll - the green material found in chloroplasts that is active in photosynthesis
Chloroplasts - membrane-bound organelles containing chlorophyll that is found in photosynthetic organisms ...
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Cyanobacteria are close to the ancestors of chloroplasts, but cyanobacteria maintain fully functional respiratory and photosynthetic complexes in the same internal membrane system, the thylakoids.
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A mutant with a large deletion in its chloroplast DNA is unable to grow in the light. In the light, it can't make psa, a component of the photosynthetic machinery.
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Mitochondrial DNA Mitochondria, and chloroplasts in plants, carry their own small chromosomes, usually in multiple copies per organelle. These carry a limited number of genes which code for rRNA, tRNA and a few organelle proteins.
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Organelle: A subcellular structure having a specialized function for example the mitochondrion, the chloroplast, or the spindle apparatus.
By North Carolina State University Glossarry of Terms
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Eukarya acquired mitochondrial and chloroplast DNA from Bacteria. Nuclear genes in eukaryotes seem to be derived from Bacteria as well, not just from Archaea. Genes are also shared between Archaea and Bacteria.
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