Which tissue in the aboveground portion of a plant body contains the least densely packed cells? What is the function of these air spaces?

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    xylem; allows pressure for transport
    pith; helps with support
    spongy and palisade parenchyma; serves as a source of carbon dioxide for photosynthesis and oxygen for cellular respiration
    collenchyma; serves as a source of oxygen for photosynthesis

asked May 30, 2013 in Biology by anonymous
    

1 Answer

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spongy and palisade parenchyma; serves as a source of carbon dioxide for photosynthesis and oxygen for cellular respiration
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)

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