Question

The mineral nutrient mainly concerning with apical meristematic activity is

• A. K
• B. Ca
• C. N
• D. S

Answer 1

The correct option is B Ca

Plants require seventeen essential mineral elements. The essential mineral elements can be grouped into two classes based on the amount required. Macronutrients are the minerals required in large amount. The important macronutrients for plants are carbon, hydrogen, oxygen, nitrogen, phosphorous, sulphur, magnesium, potassium, calcium.

The micronutrients required in lesser amount are zinc, copper, iron, manganese, nickel, molybdenum, chlorine and boron.

As calcium is a component of cell wall in plants, it is essential for the growth activity of meristematic cells. Calcium is also required for spindle formation during cell division. For this reason also calcium is an important requirement for meristematic cells at the apex.