Which mineral element is associated with the translocation of sugars in plants?

The essential mineral for the formation of body protein is

Write the importance of $Ca^{2+}$ in plants.

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?

Manganese is required in

$Mg$ and $Fe$ are required by plants for the: