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The apoplast and symplast pathways are two different pathways by which water can move through the root of a plant.
Water in the apoplast pathway moves from cell to cell via spaces in the cellulose cell walls until it reaches the endodermis. At the endodermis, there is the 'apoplast block' - the cellulose cell walls of the cells of the endodermis have a substance called suberin which is impermeable and prevents the movement of water. The suberin makes up what is called the Casparian strip. At this point, all the water has to move into the vacuolar and symplast pathways. The function of the apoplast block is to prevent harmful substances from entering the xylem.
The symplast pathway is where water moves from cell to cell in the cytoplasm via the plasma membranes and plasmodesmata. Water moves along the root by osmosis down a water potential gradient (as water moves into one cell, this cell then has a higher water potential than the adjacent cell, so water moves from cell to cell by osmosis). Water moves in this way along in the cytoplasm from the root hair cell to the endodermis.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoApoplast pathway is across cell wall whereas symplast pathway is across cytoplasm.
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What are the two routes that water may take to move from the outside of the root to the transport cells with in the root?
Apoplast and Symplast pathways, the apoplast pathway is through the cell walls, this stops once the water reaches the casparian strip, the water then joins the symplast pathway, which is through the cell across the plasmodesmata to the next cell. Until the water reaches the xylem
What is an apoplast?
An apoplast is a space outside of a plant's plasma membrane through which water and soluble nutrients are transported across a tissue or organ.
What structure or compartment is part of the plant's apoplast?
the lumen of a sieve tube
The casparian strip prevents water and minerals from entering the stele through?
Apoplast
Fluids and dissolved substances can move across cell walls via the?
Do you perhaps mean symplast pathway? Or plasmodesmata?
Why does the medium's pH need to be standardized at 5.8 while preparing the MS medium?
Because it is the pH of the Apoplast. Cells are happy in it.
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What causes plants to draw water of its roots to its leaves?
There's a water potential gradient between the root cells and the soil (more water in the soil) so water moves into the root cells by osmosis. Then it moves into neighbouring cells as there's less water in its neighbouring cells. It either moves through living parts of the plant (symplast) or the dead part like the cell wall (apoplast). It is then drawn up the xylem due to transpiration (leaf losing water so more water moves up to the leaf). The water molecules are cohesive due to hydrogen bonding so they 'stick' together and moves up together. There's also root pressure causing it to move up
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What lies between the cell walls of a plants cells?
its called apoplast network of spaces between plant cells: the network of interconnected spaces within the living cells of a plant, including spaces within the cell walls, between cells, or in nonliving tissue. It provides the main pathway for the movement of water between the sap-conducting vessels and the cells.
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