Question

Unloading of mineral ions occurs at fine vein endings through * (i) and their uptake occur by the cells of sink *(ii)
(i) Diffusion (ii) Active
(i) Diffusion (ii) Passive
(i) Active (ii) Facilitated diffusion
(i) Active transport (ii) Passive

Options:
(1)

(2)

(3)

(4)

Answer 1

Answer:

1

Explanation:

• unloading of mineral ions by diffusion
• and their uptake by active transport

Answer 2

Answer:

Unloading of mineral ions occurs at the fine veins ending through (i)diffusion and their uptake occur by the cells of sink *(ii)Active

so,the answer is -i) Diffusion (ii) Active

Explanation:

The chief sinks for the mineral elements are the growing regions of the plant, such as the apical and lateral meristems, young leaves, developing flowers, fruits and seeds, and the storage organs. Unloading of mineral ions occurs at the fine vein endings through diffusion and active uptake by these cells.