Wednesday, February 27, 2008

Phloem And Translocation (Under Construction)

Mass Flow/Pressure Flow Hypothesis (Münch model)

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The diagram above shows the flow for a Münch model
*Please note that such drawing method is incorrect for reports, it is only for reference*
 
What happen in the model?
1. Due to concentration gradient, sugar solution will flow from Flask A towards Flask B.
2. This will increase turgor pressure/hydrostatics pressure in Flask B. 
3. Since the flask is closed, water is forced out of Flask B into the basin/beaker.
4. At the same time, water at the Flask A was forced into Flask A because of osmotic pressure in Flask A.
 
Application
1. In plants, the tube connecting the flasks will be phloem, while Flask A is the Leaf Part and Flask B is the Root Part.
2. And the tube connecting the beaker will be xylem.
3. The Leaf will have many nutrients(food/sugar) as the result of photosynthesis.
4. However, the concentration of sugar at the Root part will be lower but with water.
 
The Hypothesis
1.

Electro-osmosis




Cytoplasmic Streaming




Peristaltic Waves

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