Copper is a component of:

Cell elongation is adversely affected by

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?

Sulfur,as an essential nutrient,significantly increases the growth and productivity of which type of crops?

Magnesium is essential for $......$ in plants.

$Mg^{2+}$ is an activator of:
$I.$ Alcohol dehydrogenase
$II.$ Nitrogenase
$III.$ Ribulose bisphosphate carboxylase oxygenase
$IV.$ Phosphoenol pyruvate carboxylase
Choose the correct option.