spongy parenchyma

spongy parenchyma
the lower layer of the ground tissue of a leaf, characteristically containing irregularly shaped cells with relatively few chloroplasts and large intercellular spaces. Also called spongy mesophyll.

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Universalium. 2010.

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  • spongy parenchyma — noun : loosely and irregularly arranged parenchyma having numerous intercellular spaces found toward the lower surface within many leaves and consisting of irregular, lobed, or stellate cells compare palisade parenchyma * * * Bot. the lower layer …   Useful english dictionary

  • spongy parenchyma — noun Date: 1884 a spongy layer of irregular chlorophyll bearing cells interspersed with air spaces that fills the interior part of a leaf below the palisade layer called also spongy layer, spongy tissue …   New Collegiate Dictionary

  • spongy parenchyma — Tissue usually found in the lower part of the leaf mesophyll. Consists of irregularly shaped, photosynthetic parenchyma cells, separated by large air spaces …   Dictionary of molecular biology

  • spongy layer — noun see spongy parenchyma …   New Collegiate Dictionary

  • spongy tissue — noun see spongy parenchyma …   New Collegiate Dictionary

  • parenchyma — [pə reŋ′ki mə, pəren′ki mə] n. [ModL < Gr, anything poured in beside < para , beside (see PARA 1) + enchyma, infusion < enchein, to pour in < en , in + cheein, to pour: see FOUND3] 1. Anat. the essential or functional tissue of an… …   English World dictionary

  • parenchyma — parenchymal, parenchymatous /par euhng kim euh teuhs/, adj. /peuh reng keuh meuh/, n. 1. Bot. the fundamental tissue of plants, composed of thin walled cells able to divide. 2. Anat., Zool. the specific tissue of an animal organ as distinguished… …   Universalium

  • parenchyma — pa•ren•chy•ma [[t]pəˈrɛŋ kə mə[/t]] n. 1) bot the fundamental tissue of plants, composed of thin walled cells able to divide 2) anat. zool. the functional tissue of an animal organ as distinguished from its connective or supporting tissue 3) zool …   From formal English to slang

  • palisade parenchyma — noun : a layer of columnar or cylindrical cells that are rich in chloroplasts, have small intercellular spaces, and are found typically just beneath the upper epidermis of foliage leaves compare spongy parenchyma * * * Bot. the upper layer of… …   Useful english dictionary

  • spongymesophyll — spongy mesophyll n. A leaf tissue consisting of loosely arranged, chloroplast bearing, usually lobed cells. Also called spongy parenchyma. * * * …   Universalium

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