The major function of trace elements is to act as

The deficiencies of micronutrients not only affect the growth of plants but also vital functions such as photosynthetic and mitochondrial electron flow. Among the list given below,which group of three elements shall affect most,both photosynthetic and mitochondrial electron transport?

Which element is provided in a smaller quantity to develop an attractive color in apples?

We know that plants require nutrients. If we supply these in excess,will it be beneficial to the plants? If yes,how? If no,why?

Clarify the role of essential mineral elements (Role of Macro and Micro-nutrients).

Match List-$I$ with List-$II$.

List-$I$	List-$II$
$(a)$ Manganese	$(i)$ Activates the enzyme catalase
$(b)$ Magnesium	$(ii)$ Required for pollen germination
$(c)$ Boron	$(iii)$ Activates enzymes of respiration
$(d)$ Iron	$(iv)$ Functions in splitting of water during photosynthesis