The cell wall is permeable and not a semiperm | vedclass

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(A) The cell wall is a non-living,rigid,and freely permeable layer that allows the movement of water and dissolved mineral salts without any selective

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Soil into periplasmic space of root hairs

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(A) The cell wall is a non-living,rigid,and freely permeable layer that allows the movement of water and dissolved mineral salts without any selective barrier. In the root,water and minerals from the soil enter the periplasmic space (the space between the cell wall and the plasma membrane) of the root hairs by passing through the cell wall. Since the cell wall does not restrict the entry of these substances,it demonstrates its permeable nature. In contrast,the movement from root hairs to cortical cells or further into the pericycle involves crossing the plasma membrane,which is a semipermeable (selectively permeable) barrier. Therefore,the passage from soil into the periplasmic space of root hairs best illustrates the permeable nature of the cell wall.

The cell wall is permeable and not a semipermeable structure; this can be best deduced from the passage of water and mineral salts from:

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