Transportation of Substance in Plants

(a) Why is transport of materials necessary in an organism (plant or animals) ? (b) What is the need of special tissues or organs for transport of substances in plants and animals ? (c) How are water and minerals transported in plants ? (d) How is food transported in plants ?

Which of the following is true/false regarding transport of substances in plants ? (i) Mass flow is the movement of substances in bulk as a result of pressure difference (ii) Bulk flow is achieved only through a positive hydrostatic pressure gradient (iii) The apoplast system is the system of interconnected protoplasts (iv) Most of the water flow in the roots occurs via the apoplast since the cortical cells are loosely packed, and offer no resistance to water movement.

Assertion :- Long distance transport of substances within plant cannot be by diffusion alone. Reason:- Diffusion is a slow process

Transportation in Plant

Transportation in Plant

Transportation in Plant

Transportation in Plant