Question

(a) How water is transported to various parts of the plant. Is the water movement active, or is it still passive?

Answer 1

1)Transport of water, minerals and other essential nutrients in plants is required for its survival.

2)Transportation in plants takes place by three ways:
1. Passive transport
a. Diffusion
b. Facilitated diffusion
2. Active transport

3)Diffusion is a passive process in which molecules move from a region of its higher concentration to a region of its lower concentration. It is a slow process and without any energy expenditure the molecules move in a random fashion from cell to cell or from one part of the plant cell to the other. It generally depends upon the temperature, pressure, concentration gradient etc.

4)Facilitated diffusion is a type of passive process where smaller particles are transported faster as compared to the larger ones.

5) When molecules are pumped against the concentration gradient it is termed as active transport the energy required for this process is supplied in the form of ATP.