Question

Choose the correct statements:

I. Movement of water through apoplast involves crossing the cell membrane
II. Movement through apoplast is gradient dependent
III. In symplast, water moves through plasmodesmata
IV. Transpiration pull is less important than root pressure in tall plants

• A. I and II
• B. II and III
• C. I and IV
• D. I and III

Hint:

Apoplast = cell wall only; Symplast = plasmodesmata; Transpiration pull dominates in tall trees.

Answer 1

The Correct Option is B

I: False — Apoplast pathway is cell wall pathway; water does not cross plasma membrane.
II: True — Apoplastic movement is driven by water potential gradient.
III: True — In symplastic pathway, water moves via plasmodesmata.
IV: False — Transpiration pull is the main force for long-distance water transport, especially in tall plants.