Mineral Nutrition Question 1
1. Match the following concerning essential elements and their functions in plants [2020]
(a) Iron
(i) Photolysis of water
(b) Zinc
(ii) Pollen germination
(c) Boron
(iii) Required for chlorophyll biosynthesis
(d) Manganese
(iv) IAA biosynthesis
(a) (iv) (iii) (ii) (i)
(b) (iii) (iv) (ii) (i)
(c) (iv) (i) (ii) (iii)
(d) (ii) (i) (iv) (iii)
Show Answer
Answer : b
Hints & Solution
(b) Iron is essential for the formation of chlorophyll. Zinc is needed for synthesis of auxin. Boron plays a role in pollen grain germination. Manganese is involved in the splitting of water to liberate $O_2$ during photosynthesis. Iron $(Fe)$ deficiency is a plant disorder also known as “lime-induced chlorosis”. Zinc deficiency occurs when plant growth is limited because the plant cannot take up sufficient quantities of this essential micronutrient from its growing medium. boron deficiency are expressed at growing tips of the root or shoot, and generally include stunting and distortion of the growing tip that can lead to tip death, brittle foliage, and yellowing of lower leaf tips. Manganese deficiency causes yellowing of leaves and undergoes interveinal chlorosis.
