Which mineral element is needed for synthesis of Auxin?

Which element is needed for the synthesis of auxins?

Name the mineral element that is needed for the following respectively : Synthesis of haemoglobin

Name the mineral element that is needed for the following respectively: Production of melanin .

Name the mineral element that is needed for the following respectively: Nerve and muscle activities

Name the mineral element that is needed for the following respectively: Water balance

Name the mineral element that is needed for the following respectively : Strong teeth

Name the mineral element that is needed for the following respectively : Proper working of thyroid

Name the enzyme involved in biological nitrogen fixation. What are the two mineral elements needed for the activity of enzymes.

The mineral required for synthesis of IAA is

Which mineral element is found in nucleic acid?