| 单词 | spongy parenchyma |
| 释义 | spongy parenchymanoun Botany.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. Origin of spongy parenchymaFirst recorded in 1880–85 Words nearby spongy parenchymaspongiositis, spongocoel, spongy, spongy bone, spongy degeneration, spongy parenchyma, spongy substance, sponsion, sponson, sponsor, sponsored Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Scientific definitions for spongy parenchymaspongy parenchyma [ spŭn′jē ] A layer of cells in the interior of leaves, consisting of loosely arranged, irregularly shaped cells that have chloroplasts. The spongy parenchyma has many spaces between cells to facilitate the circulation of air and the exchange of gases. It lies just below the palisade layer. Also called spongy mesophyll See more at photosynthesis. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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