Question

The symplast pathway is most easily disrupted when
A. Water transport channels in the plasma membrane of the root hair cells malfunction
B. Water transport channels in the plasma membrane of the root cortex malfunction
C. Water transport channels in the plasma membrane of the root endodermis malfunction
D. Water transport channels in the plasma membrane of the guard cells malfunction

Answer 1

Answer C is correct i guess, because in symplast pathway Water molecules passes through aquaporin present in root endodermis and in apoplastic pathway which is when the water molecules moves/ travels across the cell wall stops when it reaches the endodermis. So generally to disrupt the symplast pathway malfunctioning of water transport channels ( aquaporin )of root endodermis will be easy. I hope you got this ..