Why is it that in certain plants deficiency symptoms appear first in younger parts of the plant while in others they do so in mature organs?

Read the following statements regarding the mineral nutrition in plants (1) For the elements that are actively mobilized within the plants, the deficiency symptoms tend to appear first in the young tissues. (2) Manganese competes with iron and magnesium for uptake and with magnesium for binding with enzymes. (3) Manganese inhibits calcium traslocation in shoot apex. (4) Rhodospirillum is aerobic free-living nitrogen fixing microbe. Which of these are correct

Roots developed from parts of the plant other than radicle are called

Assertion. Calcium deficiency symptoms first appear in the apical region. Reason. Calcium is highly mobile in plants

Which part of the plant is best suited for making virus free plants and why?

Deficiency symptoms of an element tend to appear first in young leaves. It indicates that the element is relatively immobile. Which one of the following elemental deficiency would show such symptoms?

Name at least five different deficiency symptoms in plants. Describe them and correlate them with the concerned mineral deficiency.

Read the following matches regarding the elements and their deficiency symptoms in plants (i) Molybdenum - Brown heart of turnip (ii) Potassium - Plastid disintegration (iii) Magnesium - Underdeveloped phloem & pith (iv) Phosphorus - Delay in seedgermination Which of these are correct

Why do some clouds appear white while some appear grey ?

The plant part which consists of two generations one within the other is