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  • Absorption of water by the plant cell walls by surface attraction is calledOption: 1 DiffusionOption: 2

Absorption of water by the plant cell walls by surface attraction is called

Option: 1

Diffusion


Option: 2

Osmosis


Option: 3

DPD


Option: 4

Imbibition


Answers (1)

best_answer

 

 
  • The root hair cells initially absorb the water from the soil through imbibition by the cell walls.
  • Water moves into the root hair cells due to the osmotic pressure.
  • Now, the cell to cell movement of water begins, from the root hair cells to the cortical cells according to the DPD.
  • Inner cortical cells have a higher DPD as compared to the outer cortical cells.
  • The innermost layer of the cortex is endodermis. The endodermal cells have suberised Casparian strips which is impervious to water. 
  • Water is then directed to the passage cells or transfer cells of the endodermis that do not have suberised walls. 
  • From the passage cells, water moves into the xylem elements.

 

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The root hair cells initially absorb the water from the soil through imbibition by the cell walls. The water is adsorbed by the cell walls and is then diffused in the cells. Hence, the correct answer is option d.

 

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