CHLOROPLAST

klōrˈəplăstˌ, klôrˈ–, a complex, discrete green structure, or organelle, contained in the cytoplasm of plant cells. Chloroplasts are reponsible for the green color of almost all plants and are lacking only in plants that do not make their own food, such as fungi and nongreen parasitic or saprophytic higher plants. The chloroplast is generally flattened and lens-shaped and consists of a body, or stroma, in which are embedded from a few to as many as 50 submicroscopic bodies—the grana—made up of stacked, disklike plates. The chloroplast contains chlorophyll pigments, as well as yellow and orange carotenoid pigments. Chloroplasts are thus the central site of the photosynthetic process in plants. The chloroplasts of algae are simpler than those of higher plants and may contain special, often conspicuous, starch-accumulating structures called pyrenoids.

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The Columbia Encyclopedia, Sixth Edition Copyright© 2004, Columbia University Press. Licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.

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Questia Books and Articles on: Chloroplast
We found: 258 results
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101  

 

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books on: Chloroplast  - 128 results

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1.
Program of the Twelfth Annual Conference of the Cognitive Science Society, 25-28 July 1990, Cambridge, Massachusetts
Book by Cognitive Science Society (U.S.); Lawrence Erlbaum Associates, 1990
Subjects: Cognition--Congresses, Cognitive Science--Congresses, Linguistics--Congresses
...example view and view type 2a Qua Component 2b Chloroplast Qua Component 2c s isa s Chloroplast tuvwxyz isa t Chlorophyll hasPart s t isa...root concept . Applying this view type to chloroplast identifies the segment of the knowledge base...
2.
Currents in Biochemical Research, 1956: Twenty-Seven Essays Charting the Present Course of Biochemical Research and Considering the Intimate Relationship of Biochemistry to Medicine, Physiology, and Biology
Book by David E. Green; Interscience Publishers, 1956
Subjects: Biochemistry--Research
...the enzymes which reduce CO 2 in the chloroplast are so active that the reducing power...used before it can diffuse out of the chloroplast. The other reagent requirement for...from respiration proceed in both the chloroplast and the space outside. When the light...
3.
Experimental Biology
Book by Richard W. Van Norman; Prentice Hall, 1963
Subjects: Biology, Experimental, Biology--Research
...the preparative steps. Preparation of chloroplast fragments--an example The following...is only one of many methods of preparing chloroplasts or chloroplast fragments. These chloroplasts are prepared by Dr. J. D. Spikes and...
4.
The Science of Genetics
Book by Charlotte Auerbach; Harper & Brothers, 1961
Subjects: Genetics
...Albino seedling, chloroplast stage I B II...Albino seedling, chloroplast stage II C Formation...with abnormal chloroplasts stage III...green seedling, chloroplasts stage IV H Persistence of normal chloroplast Bleached seedling...
5.
Biophysical Science
Book by Eugene Ackerman; Prentice-Hall, 1962
Subjects: Biophysics
...occurs only in the chloroplasts. The size and shape of the chloroplasts vary quite widely...cup-shaped chloroplast per cell. It...per cell. The chloroplasts of higher plants...used for both chloroplast and chromoplast...
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journal articles on: Chloroplast  - 101 results

       More journal Results: 1-10 11-20 21-30 31-40 41-50 >>  
 
1.
A Selective Sweep in the Chloroplast DNA of Dioecious Silene (Section Elisanthe)
Journal article by Graham Muir, Dmitry Filatov; Genetics, Vol. 177, 2007
Subjects: DNA, Chloroplast, Deoxyribonucleic acid--DNA, Genetic diversity, Mutation, Plant growth, Population, Sample size, Studies
A Selective Sweep in the Chloroplast DNA of Dioecious Silene (Section...by Graham Muir , Dmitry Filatov CHLOROPLAST DNA (cpDNA) is widely used in...explicitly assume that the gene tree of chloroplast sequences reflects the history...
2.
Differential Replication of Two Chloroplast Genome Forms in Heteroplasmic Chlamydomonas Reinhardtii Gametes Contributes to Alternative Inheritance Patterns
Journal article by Yoshiki Nishimura, David B. Stern; Genetics, Vol. 185, 2010
Subjects: Cell division, Chloroplasts, Genetics, RNA polymerase, Research & development--R&D
...localized to the chloroplast nucleoids. Inhibition of chloroplast transcription...Chlamydomonas chloroplasts have developed...however, since the chloroplast genome does not...Chlamydomonas chloroplasts (Eberhard et...
3.
The Chloroplast Protein Translocation Complexes of Chlamydomonas Reinhardtii: a Bioinformatic Comparison of Toc and Tic Components in Plants, Green Algae and Red Algae
Journal article by Ming Kalanon, Geoffrey I. McFadden; Genetics, Vol. 179, 2008
Subjects: Bacteria, Data bases, Membrane Transport Proteins, Multiprotein Complexes, Neural networks, Peptides, Proteins
The Chloroplast Protein Translocation...components making up its chloroplast protein translocation...complexes, allowing the chloroplast to maintain import of...into C. reinhardtii chloroplasts is unlikely to involve...
4.
Biogeographical Distribution of Chloroplast Diversity in Northern Red Oak (Quercus Rubra L.)
Journal article by Inna Birchenko, Yi Feng, Jeanne Romero-Severson; The American Midland Naturalist, Vol. 161, 2009
Subjects: Climate change, Forest management, Trees
Biogeographical Distribution of Chloroplast Diversity in Northern Red Oak (Quercus...These characteristics suggest that the chloroplast haplotypes of the founder acorns will...stepping-stone pattern in which a chloroplast haplotype left behind due to chance...
5.
Role of a Nonselective de Novo DNA Methyltransferase in Maternal Inheritance of Chloroplast Genes in the Green Alga, Chlamydomonas Reinhardtii
Journal article by Rie Nishiyama, Yuko Wada, Momoka Mibu, Yube Yamaguchi; Genetics, Vol. 168, 2004
Subjects: Algae, Cell division, Deoxyribonucleic acid--DNA, Genetics
...methylation occurs only in chloroplast DNA at the period of gametogenesis...for mating. Degradation of chloroplast DNA from the mt^sup...localized in mt^sup -^ chloroplasts and activated within 60...sup -^ to degrade its chloroplast DNA (NISHIMURA et al. 2002...
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magazine articles on: Chloroplast  - 26 results

       More magazine Results: 1-10 11-20 21-26 >>  
 
1.
Chloroplast Pinch
Magazine article by Richard P. Grant; The Scientist, Vol. 24, December 2010
Subjects: Cell division, Chloroplasts, Proteins
Chloroplast Pinch by Richard...Yoshida et al., "Chloroplasts divide by contraction...mechanism in chloroplasts was unknown...has a single chloroplast and mitochondrion...isolated the chloroplasts dividing ring...
2.
Communicating with Chloroplasts
Magazine article by Bob Grant; The Scientist, Vol. 23, April 2009
Subjects: Biologists, Gene expression
...communications between chloroplasts and plant cell nuclei...a protein found in chloroplasts that regulates RNA...that the few known chloroplast-to-nucleus signals...signaling- where chloroplasts alter the expression...genes that encode chloroplast-bound proteins...
3.
Secondary Endosymbiosis Exposed
Magazine article by Jack Lucentini; The Scientist, Vol. 19, June 6, 2005
...became the algas chloroplasts and lost or ceded...membranes around the chloroplast. The story itself...event spawned chloroplasts as a whole, McFadden...not all, of the chloroplast genes. In secondary...showing that the chloroplast retained the photosynthetic...gene psbA. "Chloroplasts and mitochondria...
4.
Magnolias from Moscow
Magazine article; Natural History, Vol. 101, September 1992
Subjects: Botany, DNA, Deoxyribonucleic acid, Lakes, Moscow Idaho, Paleontology
...of DNA from a chloroplast gene called rbcL...factories," and chloroplasts, or photosynthetic...percent contained chloroplasts, 26.0 percent...be preserved, chloroplast genes are the...Moreover, only chloroplast DNA has so far been recovered, and chloroplasts preserve better...
5.
Self-containment for GM Plants
Magazine article by Ivan Oransky; The Scientist, Vol. 18, February 16, 2004
...has 10,000 copies of the chloroplast genome, expression levels...minimize disruption of the chloroplast genome. The gene to be inserted...put under the control of chloroplast regulatory signals so that...do hit their mark in the chloroplasts integrate via homologous...
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newspaper articles on: Chloroplast  - 1 result

 
 
1.
Teacher Makes Biology Entertaining
Newspaper article; The Washington Times, December 15, 2002
...in the trash if not relevant. So the terms chromatin, nuclear envelope and nucleolus would be dragged over nucleus while chloroplast would be dumped. Family activity: The site doesnt offer much for the clan to do away from the computer, other than print...


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encyclopedia articles on: Chloroplast  - 2 results

 
 
1.
Chloroplast
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
CHLOROPLAST klor plast...plant cells. Chloroplasts are reponsible...plants. The chloroplast is generally...plates. The chloroplast contains chlorophyll...carotenoid pigments. Chloroplasts are thus the...
2.
Pyrenoid
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
PYRENOID see chloroplast . ____________________ Copyright 2009 Columbia University Press. Used with the permission of Columbia University Press. All rights reserved.


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