Chloroplast: Difference between revisions
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In [[Photosynthesis|photosynthesis-capable]] [[organisms]] classified as [[Eukarya]], the one of the three [[Domain (biology)|domains]] of Earth's [[Life|living systems]] the [[cell]]s of whose organisms contain a [[Nucleus (biology)|nucleus]], the photosynthesis-initiating molecular apparatus resides in the cells' [[cytoplasm]], in [[organelle]]s called '''chloroplasts''', tiny, somewhat football-shaped, [[Bacteria|bacteria-sized]] structures, a few micrometers in size, up to several hundred in number in cells with high photosynthetic rates, each chloroplast a separate compartmented structure whose boundary consists of two [[Membrane (biology)|membranes]], the interior of the inner membrane of which contains a semiliquid matrix, called [[stroma]], suspending a system of membranes, called [[thylakoids]], whose membranes embed molecules of [[chlorophyll]] and other pigments that absorb energy from sunlight, the initiating step of the physico-chemical process of photosynthesis.<ref name=hallrao6>Hall DO, Rao KK. (1999) ''Photosynthesis''. 6th ed. Cambridge University Press. ISBN 0-521-64257-4. | [http://tinyurl.com/ylzwu2q Google Books preview.]</ref> <ref name=Blankenship02>Blankenship RE (2002) ''Molecular Mechanisms of Photosynthesis''. Wiley-Blackwell. ISBN 0632043210; ISBN 978-0632043217</ref> <ref name=cooper2009>Cooper GM, Hausman RE. (2009) Chloroplasts and Other Plastids. In: ''The Cell: A Molecular Approach'' Fifth Edition, pp. 452-459. Sinauer Associates, Inc.</ref> <ref name=sternonplastids2008>Stern KR, Bidlack JE, Jansky S. (2008) Plastids. In: ''Introductory Plant Biology.'' 11th ed. pp. 41-42. Boston: McGraw-Hill Higher Education. ISBN 9780072830675.</ref> <ref name=hoober2000>Hoober JK. (2000) Chloroplast structure and development. In: ''Photosynthesis: A Comprehensive Treatise.'' A.S. Raghavendra,editor. Cambridge University Press. ISBN 9780521784443. | [http://books.google.com/books?id=EK0OEaFk2oYC&source=gbs_navlinks_s Google Books preview, pp. 3-19.] Twenty-six chapters covering a broad range of topics in photosynthesis.</ref> | In [[Photosynthesis|photosynthesis-capable]] [[organisms]] classified as [[Eukarya]], the one of the three [[Domain (biology)|domains]] of Earth's [[Life|living systems]] the [[cell]]s of whose organisms contain a [[Nucleus (biology)|nucleus]], the photosynthesis-initiating molecular apparatus resides in the cells' [[cytoplasm]], in [[organelle]]s called '''chloroplasts''', tiny, somewhat football-shaped, [[Bacteria|bacteria-sized]] structures, a few micrometers in size, up to several hundred in number in cells with high photosynthetic rates, each chloroplast a separate compartmented structure whose boundary consists of two [[Membrane (biology)|membranes]], the interior of the inner membrane of which contains a semiliquid matrix, called [[stroma]], suspending a system of membranes, called [[thylakoids]], whose membranes embed molecules of [[chlorophyll]] and other pigments that absorb energy from sunlight, the initiating step of the physico-chemical process of photosynthesis.<ref name=hallrao6>Hall DO, Rao KK. (1999) ''Photosynthesis''. 6th ed. Cambridge University Press. ISBN 0-521-64257-4. | [http://tinyurl.com/ylzwu2q Google Books preview.]</ref> <ref name=Blankenship02>Blankenship RE (2002) ''Molecular Mechanisms of Photosynthesis''. Wiley-Blackwell. ISBN 0632043210; ISBN 978-0632043217</ref> <ref name=cooper2009>Cooper GM, Hausman RE. (2009) Chloroplasts and Other Plastids. In: ''The Cell: A Molecular Approach'' Fifth Edition, pp. 452-459. Sinauer Associates, Inc.</ref> <ref name=sternonplastids2008>Stern KR, Bidlack JE, Jansky S. (2008) Plastids. In: ''Introductory Plant Biology.'' 11th ed. pp. 41-42. Boston: McGraw-Hill Higher Education. ISBN 9780072830675.</ref> <ref name=hoober2000>Hoober JK. (2000) Chloroplast structure and development. In: ''Photosynthesis: A Comprehensive Treatise.'' A.S. Raghavendra,editor. Cambridge University Press. ISBN 9780521784443. | [http://books.google.com/books?id=EK0OEaFk2oYC&source=gbs_navlinks_s Google Books preview, pp. 3-19.] | [http://www.amazon.com/reader/0521784441?_encoding=UTF8&token=97ZgP%2B65DqLCg0en28RMFH4%2FpfwEBICc2OczGTpBYlE%3D&ref_=sib%5Ffs%5Fbod&page=22#reader_0521784441 Table of Contents.] | Twenty-six chapters covering a broad range of topics in photosynthesis.</ref> | ||
The domain Eukarya includes photosynthesis-capable organisms in two of its four [[Kingdom (biology)|kingdoms]],<ref> | The domain Eukarya includes photosynthesis-capable organisms in two of its four [[Kingdom (biology)|kingdoms]],<ref> | ||
Revision as of 20:51, 4 February 2010
In photosynthesis-capable organisms classified as Eukarya, the one of the three domains of Earth's living systems the cells of whose organisms contain a nucleus, the photosynthesis-initiating molecular apparatus resides in the cells' cytoplasm, in organelles called chloroplasts, tiny, somewhat football-shaped, bacteria-sized structures, a few micrometers in size, up to several hundred in number in cells with high photosynthetic rates, each chloroplast a separate compartmented structure whose boundary consists of two membranes, the interior of the inner membrane of which contains a semiliquid matrix, called stroma, suspending a system of membranes, called thylakoids, whose membranes embed molecules of chlorophyll and other pigments that absorb energy from sunlight, the initiating step of the physico-chemical process of photosynthesis.[1] [2] [3] [4] [5]
The domain Eukarya includes photosynthesis-capable organisms in two of its four kingdoms,[6] namely Plantae (the plant kingdom) and Protista (the protist kingdom), the former including photosynthesis-capable algae, mostly single-celled or colonizing members of the plant kingdom, and the green plants we see all around us, the Protista including diatoms, dinoflagellates, and euglenids, and other members of the protist kingdom, a mixed group of mostly single-celled organisms that do not classify under the Eukarya's kingdoms of plants, fungi (Fungi) and animals (Animalia). Biologists refer to organisms in Eukarya as eukaryotes.
References and footnotes cited in text as superscripts
- ↑ Hall DO, Rao KK. (1999) Photosynthesis. 6th ed. Cambridge University Press. ISBN 0-521-64257-4. | Google Books preview.
- ↑ Blankenship RE (2002) Molecular Mechanisms of Photosynthesis. Wiley-Blackwell. ISBN 0632043210; ISBN 978-0632043217
- ↑ Cooper GM, Hausman RE. (2009) Chloroplasts and Other Plastids. In: The Cell: A Molecular Approach Fifth Edition, pp. 452-459. Sinauer Associates, Inc.
- ↑ Stern KR, Bidlack JE, Jansky S. (2008) Plastids. In: Introductory Plant Biology. 11th ed. pp. 41-42. Boston: McGraw-Hill Higher Education. ISBN 9780072830675.
- ↑ Hoober JK. (2000) Chloroplast structure and development. In: Photosynthesis: A Comprehensive Treatise. A.S. Raghavendra,editor. Cambridge University Press. ISBN 9780521784443. | Google Books preview, pp. 3-19. | Table of Contents. | Twenty-six chapters covering a broad range of topics in photosynthesis.
- ↑ Note: See Kingdom (biology) for a more detailed discussion of the taxonomy of kingdoms in Eukarya.