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Transport in Plants

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12
Describe the importance of imbibition.

Importance of imbibition :

1. The young cells absorb water by imbibition.

2. The germinating seeds imbibe water resulting in the bursting of seed coat leading to their germination.

3. Roots absorb water by imbibition initially. 

4. The imbibitional pressure helps the roots and seeds to push through the soil. 

 

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Give the term for the ability to resist a pulling force.

Tensile strength
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Why the cortex produces no resistance to movement of water ?

The cortical cells are loosely packed and produce no resistance to movement of water via cell walls or apoplast.
598 Views

Why the water is forced to move through cell membrane beyond endodermis ?

Water is forced to move through cell membranes beyond endodermis because of the suberin (waxy substance) present on radial walls of endodermal cells blocks water and solute movement through cell walls of endodermis. 
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Who introduced the apoplast—symplast concept ?

E. Munch (1930).
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What is transmembrane pathway ?

The movement of water through cell membranes is called trans membrane pathway.
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