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Nuclear fusion
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DVD-Ram
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Carbonatite
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Beta blocker
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Mica
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Le Chatelier's principle
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Pulmonary disease
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Ecological continuum
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Chemical mediator
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Ruptured aneurysm
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Oligonucleotide
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Nitrosamine
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Loft
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Button cell
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Symbiosis
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PocketPC
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MPEG
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Corrosion patterns
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Autoclave
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Multimedia
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Rheology
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Open cluster
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Selectron
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Internet
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Homo habilis
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Washington Convention
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Heterolysis
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Essential nutrient
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Cycloplaegia
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Flora Fauna Habitat Directive
Plasmodesma
A plasmodesma is a tunnel through the cellulose-pectin wall of plant cells that connects the plasma membranes with the cell cytoplasm.
Linked by this cellular connection, the cells form a continuous channel : the symplastic pathway.
Plasmodesmata are used by water, solutes, proteins and some viruses to circulate through the plant.
Structural diagram of a plasmodesma. The plasmodesma crosses cell walls (CW) and links the membranes (PM). A desmotubule (DM) connecting two endoplasmic reticula (ER) controls the movement of molecules. © Smartse, Wikimédia CC by-sa 3.0
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