Question

39. The following statements are associated with translocation
of mineral ions.
(1) Mineral ions are slowly remobilised.
(ii) Younger leaves export most of their minerals content
to older leaves.
(ii) Elements most readily mobilised are P, S, N and K.
(iv) Some elements that are structural components like
calcium are not remobilised.
Which of the above statements are correct?
(a) (i) and (iii)
(b) (i) and (ii)
(c) (iii) and (iv)
(d) (ii) and (iii)​

Answer 1

Answer:

Older dying leaves export much of their mineral content to younger leaves. Similarly, before leaf fall in decidous plants, minerals are removed to other parts. Elements most readily mobilised are phosphorus, sulphur, nitrogen and potassium. Someelements that are structural components like calcium are not remobilised.