NEET BIOLOGY

PLANT PHYSIOLOGY

TRANSPORT IN PLANT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
water movement through cellulose cell wall without entering protoplast of root cells is called
A
symplast pathway
B
vacuolar pathway
C
apoplast pathway
D
cellulose pathway
Explanation: 

Detailed explanation-1: -In apoplast pathway water moves through cell wall without crossing any membrane.So, the correct option is ‘apoplast pathway’

Detailed explanation-2: -In the apoplast pathway, water is transported from root hair to xylem through the cell wall of intervening cells. Apoplastic water movement beyond the cortex is blocked by the Casparian strip of endodermal cells. Hence, the symplastic route is utilised to deliver water and ions beyond the cortex.

Detailed explanation-3: -The apoplast comprises the intercellular space, the cell walls, and the xylem. Important functions for the plant, such as nutrient and water transport, cellulose synthesis, and the synthesis of molecules involved in plant defense against both biotic and abiotic stresses, take place in it.

Detailed explanation-4: -The apoplast is the route the water moves through the cell walls and intercellular space of the root cortex. In the symplastic route, the water moves through the protoplasts of the root cortex. The apoplast route is the fully permeable route in which the water movement occurs in passive diffusion.

Detailed explanation-5: -The main difference between apoplast and symplast is that apoplast is a fully permeable route in which the water movement occurs by passive diffusion whereas symplast is a selectively permeable route in which the water movement occurs by osmosis.

There is 1 question to complete.