Question

It is possible to determine whether an element is essential by observing the growth of plants.
A) on the soil in which the particular element is removed
B) on the soil in cubic only the particular element is present remove
C) on an inert medium to which solution of only the para particular element is added
D) on an inert medium

Answer 1

Hint: Essential elements are those minerals of the earth which are very important for the growth of plants. plants require various types of minerals and elements for their proper growth. examples of such elements include phosphorus which is used for the anion - cation balance in cells.

Complete answer:
The concept for the essentiality of an element is the given in three-points –
The Function of that element Should be vital for the growth and development of the plant.
Without that component, the plant does not have the option to finish their life cycle or set its seeds. The demand for that particular element should be specific and not Replaceable by any other element. The function of the element should be directly involved in the metabolism OF the plant. There are a total of 17 essential elements which meet the requirements mentioned above. They are generally divided into two categories Such as macronutrients and micronutrients.
Julius von Sachs, a German botanist was the first to develop plants in a supplement arrangement to finish the nonattendance of soil. This technique of growing plants in a soil-free, nutrient solution is 'Hydroponics'. The essential minerals were identified by adding or omitting an element in the nutrient solution or using varying concentrations. As we cannot grow a plant using only one mineral, for knowing what role a particular mineral plays we can grow a plant in medium to which a nutrient solution excluding that a particular element is added.
Thus, the answer is Option (C): on an inert medium to which solution of only the particular element is added.

Note:
The standards to decide whether a mineral is basic or not for a plant is, - Their lack can prompt hindered development, cell senescence, inadequate chlorophyll in leaves, and so forth - Presence of potassium expands the nature of vegetables and organic products. Potassium, magnesium and different components are included legitimately in the digestion of plants. - Minerals like phosphorus and magnesium are needed for development, proliferation and advancement of the plant.