Definitions of apoplast, symplast and vacuolar pathways?

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Tj789
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#1
Report Thread starter 6 years ago
#1
Can I have so solid definitions. I think my definitions are rubbish:

Apoplast- the route where water moves through the cell wall and intercellular spaces in a plant

Symplast: teh route where water moves through the cytoplasm in a plant (does it move through teh cell walls?)

Vacuolar: the route where water moves through the cytoplasm and vacuoles (does it move through the cell wall?)
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kkboyk
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#2
Report 6 years ago
#2
(Original post by Tj789)
Can I have so solid definitions. I think my definitions are rubbish:

Apoplast- the route where water moves through the cell wall and intercellular spaces in a plant

Symplast: teh route where water moves through the cytoplasm in a plant (does it move through teh cell walls?)

Vacuolar: the route where water moves through the cytoplasm and vacuoles (does it move through the cell wall?)
Apoplast = movement of water through the cell wall between adjacent cells by cohesion.

Symplast = movement of water through the cytoplasm down a water potential gradient

Vacuolar = movement of water by the symplast pathway, but without crossing the cell membranes.
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blueham1
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#3
Report 10 months ago
#3
(Original post by kkboyk)
Apoplast = movement of water through the cell wall between adjacent cells by cohesion.

Symplast = movement of water through the cytoplasm down a water potential gradient

Vacuolar = movement of water by the symplast pathway, but without crossing the cell membranes.
6 years ago ik, so this is a very long shot - but that last definition about the vacuolar pathway: how does that even work? How does something enter a cell without crossing the cell membrane? Does it use the plasmodesmata (because shouldn't the symplast pathway be the one using the plasmodesmata?)
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